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Home / DTC / P0606 — Control Module Processor

P0606 — Control Module Processor

Detailed page for trouble code P0606.

34,405codes
59brands
11,914generic
22,491specific
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Code

P0606

Generic P — Powertrain

Control Module Processor

Brand: Generic
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal CPU or PCB failure inside the control module (ECM/PCM/TCM)
  • Corrupted or failed module firmware/software (failed reflash)
  • Poor or intermittent power supply (battery, ignition-switched power)
  • Bad ground or high resistance ground connection to the module
  • Corroded, damaged, or loose module connector pins or wiring harness
  • CAN/LIN network short, open, or excessive noise interfering with module operation

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Stored P0606 code (may be accompanied by other P060x or communication codes)
  • Loss of communication with the affected control module on a scan tool
  • One or more drivability issues (no start, stall, limp mode) depending on which module is affected
  • Random or multiple unrelated DTCs set
  • Some vehicle functions controlled by the module inoperative or erratic

What to check

  • Connect a calibrated scan tool and read all stored/active codes and freeze-frame data
  • Verify ability to communicate with the suspected module; note whether it responds, times out, or is missing from the network
  • Check battery voltage with engine off and key on (should be ~12.0–12.6 V at rest, higher when charging) and ensure battery is charged
  • Visually inspect module, connector, and harness for corrosion, water intrusion, damaged wires, or pin damage
  • Perform continuity and resistance checks for module power and ground circuits (verify ignition-switched power and constant battery feed where applicable)
  • Inspect and test vehicle network (CAN/LIN) for short to ground/voltage or excessive resistance; monitor bus with oscilloscope if available

Signal parameters

  • Module battery/ignition supply: approximately battery voltage with key ON (typical 11–14.5 V)
  • Module ground: near 0 V; continuity to chassis ground expected
  • CAN bus idle: each CAN line typically around mid-supply at rest (~2.5 V on high/low lines); differential signal present during communication
  • Serial/LIN/K-line: idle and active voltages vary by system—verify against manufacturer specs
  • Module wake/sleep signal states: verify correct levels per vehicle documentation

Diagnostic algorithm

  1. Record all codes and freeze-frame data. Confirm P0606 is current or historic and note any accompanying codes. 2) Verify battery state of charge and charging system health; fully charge battery before extended diagnostics. 3) Confirm scan tool can communicate with the suspect module; if module not present on network, focus on power/ground and bus wiring. 4) Visually inspect module connector and harness for water, corrosion, or damage; repair any wiring faults found. 5) Measure supply voltage and ground at the module connector with key ON and engine OFF; repair any power/ground issues. 6) Check CAN/LIN bus continuity and voltages; use an oscilloscope to look for noise or missing frames if communication is intermittent. 7) Attempt to clear the code and re-scan; if code returns immediately and communication is present, try a manufacturer-directed software reflash/update and follow security/procedure steps. 8) If software update fails or the module refuses to reflash, or if internal hardware faults are indicated, prepare for module replacement. 9) If module replacement is required, program the new module per manufacturer procedures, including immobilizer/anti-theft pairing, adaptations, and relearns. 10) After repair, clear codes and perform full system verification and road test; monitor for reoccurrence.
  2. similar_codes':['P0600','P0601','P0602','P0603','P0604','P0605','P0607','P0608','P0609'],'error_status_text':'MIL ON. Stored DTC P0606 — Control Module Processor. Indicates internal processor or related internal circuitry/software fault in the control module. Verify power and ground, inspect connectors and network communications, check for software corruption or required reflash, and consider module replacement if internal failure confirmed.','repair_difficulty':'hard','diagnostic_time':'1.5-4.0 hours'}} PMID: None. Invalid trailing. Please remove.} The last assistant message must be only JSON. Let's check: It seems I accidentally appended

Likely causes

  • Weak battery or low system voltage during operation or reprogramming
  • Loose or corroded ground at module chassis/engine ground
  • Damaged connector pins or water ingress at module housing
  • Failed internal memory or processor after an unsuccessful software update
  • Intermittent CAN/LIN wiring fault causing processor reset

Fault status

⚠️ Status
...
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4.0 hours
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Code

P0606

GWM P — Powertrain

- PCM Processor Malfunction

Brand: GWM
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal CPU or PCB failure inside the control module (ECM/PCM/TCM)
  • Corrupted or failed module firmware/software (failed reflash)
  • Poor or intermittent power supply (battery, ignition-switched power)
  • Bad ground or high resistance ground connection to the module
  • Corroded, damaged, or loose module connector pins or wiring harness
  • CAN/LIN network short, open, or excessive noise interfering with module operation

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Stored P0606 code (may be accompanied by other P060x or communication codes)
  • Loss of communication with the affected control module on a scan tool
  • One or more drivability issues (no start, stall, limp mode) depending on which module is affected
  • Random or multiple unrelated DTCs set
  • Some vehicle functions controlled by the module inoperative or erratic

What to check

  • Connect a calibrated scan tool and read all stored/active codes and freeze-frame data
  • Verify ability to communicate with the suspected module; note whether it responds, times out, or is missing from the network
  • Check battery voltage with engine off and key on (should be ~12.0–12.6 V at rest, higher when charging) and ensure battery is charged
  • Visually inspect module, connector, and harness for corrosion, water intrusion, damaged wires, or pin damage
  • Perform continuity and resistance checks for module power and ground circuits (verify ignition-switched power and constant battery feed where applicable)
  • Inspect and test vehicle network (CAN/LIN) for short to ground/voltage or excessive resistance; monitor bus with oscilloscope if available

Signal parameters

  • Module battery/ignition supply: approximately battery voltage with key ON (typical 11–14.5 V)
  • Module ground: near 0 V; continuity to chassis ground expected
  • CAN bus idle: each CAN line typically around mid-supply at rest (~2.5 V on high/low lines); differential signal present during communication
  • Serial/LIN/K-line: idle and active voltages vary by system—verify against manufacturer specs
  • Module wake/sleep signal states: verify correct levels per vehicle documentation

Diagnostic algorithm

  1. Record all codes and freeze-frame data. Confirm P0606 is current or historic and note any accompanying codes. 2) Verify battery state of charge and charging system health; fully charge battery before extended diagnostics. 3) Confirm scan tool can communicate with the suspect module; if module not present on network, focus on power/ground and bus wiring. 4) Visually inspect module connector and harness for water, corrosion, or damage; repair any wiring faults found. 5) Measure supply voltage and ground at the module connector with key ON and engine OFF; repair any power/ground issues. 6) Check CAN/LIN bus continuity and voltages; use an oscilloscope to look for noise or missing frames if communication is intermittent. 7) Attempt to clear the code and re-scan; if code returns immediately and communication is present, try a manufacturer-directed software reflash/update and follow security/procedure steps. 8) If software update fails or the module refuses to reflash, or if internal hardware faults are indicated, prepare for module replacement. 9) If module replacement is required, program the new module per manufacturer procedures, including immobilizer/anti-theft pairing, adaptations, and relearns. 10) After repair, clear codes and perform full system verification and road test; monitor for reoccurrence.
  2. similar_codes':['P0600','P0601','P0602','P0603','P0604','P0605','P0607','P0608','P0609'],'error_status_text':'MIL ON. Stored DTC P0606 — Control Module Processor. Indicates internal processor or related internal circuitry/software fault in the control module. Verify power and ground, inspect connectors and network communications, check for software corruption or required reflash, and consider module replacement if internal failure confirmed.','repair_difficulty':'hard','diagnostic_time':'1.5-4.0 hours'}} PMID: None. Invalid trailing. Please remove.} The last assistant message must be only JSON. Let's check: It seems I accidentally appended

Likely causes

  • Weak battery or low system voltage during operation or reprogramming
  • Loose or corroded ground at module chassis/engine ground
  • Damaged connector pins or water ingress at module housing
  • Failed internal memory or processor after an unsuccessful software update
  • Intermittent CAN/LIN wiring fault causing processor reset

Fault status

⚠️ Status
...
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4.0 hours
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Code

P0606

HUMMER P — Powertrain

Control Module Internal Performance

Brand: HUMMER
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal CPU or PCB failure inside the control module (ECM/PCM/TCM)
  • Corrupted or failed module firmware/software (failed reflash)
  • Poor or intermittent power supply (battery, ignition-switched power)
  • Bad ground or high resistance ground connection to the module
  • Corroded, damaged, or loose module connector pins or wiring harness
  • CAN/LIN network short, open, or excessive noise interfering with module operation

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Stored P0606 code (may be accompanied by other P060x or communication codes)
  • Loss of communication with the affected control module on a scan tool
  • One or more drivability issues (no start, stall, limp mode) depending on which module is affected
  • Random or multiple unrelated DTCs set
  • Some vehicle functions controlled by the module inoperative or erratic

What to check

  • Connect a calibrated scan tool and read all stored/active codes and freeze-frame data
  • Verify ability to communicate with the suspected module; note whether it responds, times out, or is missing from the network
  • Check battery voltage with engine off and key on (should be ~12.0–12.6 V at rest, higher when charging) and ensure battery is charged
  • Visually inspect module, connector, and harness for corrosion, water intrusion, damaged wires, or pin damage
  • Perform continuity and resistance checks for module power and ground circuits (verify ignition-switched power and constant battery feed where applicable)
  • Inspect and test vehicle network (CAN/LIN) for short to ground/voltage or excessive resistance; monitor bus with oscilloscope if available

Signal parameters

  • Module battery/ignition supply: approximately battery voltage with key ON (typical 11–14.5 V)
  • Module ground: near 0 V; continuity to chassis ground expected
  • CAN bus idle: each CAN line typically around mid-supply at rest (~2.5 V on high/low lines); differential signal present during communication
  • Serial/LIN/K-line: idle and active voltages vary by system—verify against manufacturer specs
  • Module wake/sleep signal states: verify correct levels per vehicle documentation

Diagnostic algorithm

  1. Record all codes and freeze-frame data. Confirm P0606 is current or historic and note any accompanying codes. 2) Verify battery state of charge and charging system health; fully charge battery before extended diagnostics. 3) Confirm scan tool can communicate with the suspect module; if module not present on network, focus on power/ground and bus wiring. 4) Visually inspect module connector and harness for water, corrosion, or damage; repair any wiring faults found. 5) Measure supply voltage and ground at the module connector with key ON and engine OFF; repair any power/ground issues. 6) Check CAN/LIN bus continuity and voltages; use an oscilloscope to look for noise or missing frames if communication is intermittent. 7) Attempt to clear the code and re-scan; if code returns immediately and communication is present, try a manufacturer-directed software reflash/update and follow security/procedure steps. 8) If software update fails or the module refuses to reflash, or if internal hardware faults are indicated, prepare for module replacement. 9) If module replacement is required, program the new module per manufacturer procedures, including immobilizer/anti-theft pairing, adaptations, and relearns. 10) After repair, clear codes and perform full system verification and road test; monitor for reoccurrence.
  2. similar_codes':['P0600','P0601','P0602','P0603','P0604','P0605','P0607','P0608','P0609'],'error_status_text':'MIL ON. Stored DTC P0606 — Control Module Processor. Indicates internal processor or related internal circuitry/software fault in the control module. Verify power and ground, inspect connectors and network communications, check for software corruption or required reflash, and consider module replacement if internal failure confirmed.','repair_difficulty':'hard','diagnostic_time':'1.5-4.0 hours'}} PMID: None. Invalid trailing. Please remove.} The last assistant message must be only JSON. Let's check: It seems I accidentally appended

Likely causes

  • Weak battery or low system voltage during operation or reprogramming
  • Loose or corroded ground at module chassis/engine ground
  • Damaged connector pins or water ingress at module housing
  • Failed internal memory or processor after an unsuccessful software update
  • Intermittent CAN/LIN wiring fault causing processor reset

Fault status

⚠️ Status
...
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4.0 hours
Repair manuals

Manual library for HUMMER

138

Browse 138 HUMMER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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Code

P0606

ISUZU P — Powertrain

ECM/PCM Processor

Brand: ISUZU
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal CPU or PCB failure inside the control module (ECM/PCM/TCM)
  • Corrupted or failed module firmware/software (failed reflash)
  • Poor or intermittent power supply (battery, ignition-switched power)
  • Bad ground or high resistance ground connection to the module
  • Corroded, damaged, or loose module connector pins or wiring harness
  • CAN/LIN network short, open, or excessive noise interfering with module operation

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Stored P0606 code (may be accompanied by other P060x or communication codes)
  • Loss of communication with the affected control module on a scan tool
  • One or more drivability issues (no start, stall, limp mode) depending on which module is affected
  • Random or multiple unrelated DTCs set
  • Some vehicle functions controlled by the module inoperative or erratic

What to check

  • Connect a calibrated scan tool and read all stored/active codes and freeze-frame data
  • Verify ability to communicate with the suspected module; note whether it responds, times out, or is missing from the network
  • Check battery voltage with engine off and key on (should be ~12.0–12.6 V at rest, higher when charging) and ensure battery is charged
  • Visually inspect module, connector, and harness for corrosion, water intrusion, damaged wires, or pin damage
  • Perform continuity and resistance checks for module power and ground circuits (verify ignition-switched power and constant battery feed where applicable)
  • Inspect and test vehicle network (CAN/LIN) for short to ground/voltage or excessive resistance; monitor bus with oscilloscope if available

Signal parameters

  • Module battery/ignition supply: approximately battery voltage with key ON (typical 11–14.5 V)
  • Module ground: near 0 V; continuity to chassis ground expected
  • CAN bus idle: each CAN line typically around mid-supply at rest (~2.5 V on high/low lines); differential signal present during communication
  • Serial/LIN/K-line: idle and active voltages vary by system—verify against manufacturer specs
  • Module wake/sleep signal states: verify correct levels per vehicle documentation

Diagnostic algorithm

  1. Record all codes and freeze-frame data. Confirm P0606 is current or historic and note any accompanying codes. 2) Verify battery state of charge and charging system health; fully charge battery before extended diagnostics. 3) Confirm scan tool can communicate with the suspect module; if module not present on network, focus on power/ground and bus wiring. 4) Visually inspect module connector and harness for water, corrosion, or damage; repair any wiring faults found. 5) Measure supply voltage and ground at the module connector with key ON and engine OFF; repair any power/ground issues. 6) Check CAN/LIN bus continuity and voltages; use an oscilloscope to look for noise or missing frames if communication is intermittent. 7) Attempt to clear the code and re-scan; if code returns immediately and communication is present, try a manufacturer-directed software reflash/update and follow security/procedure steps. 8) If software update fails or the module refuses to reflash, or if internal hardware faults are indicated, prepare for module replacement. 9) If module replacement is required, program the new module per manufacturer procedures, including immobilizer/anti-theft pairing, adaptations, and relearns. 10) After repair, clear codes and perform full system verification and road test; monitor for reoccurrence.
  2. similar_codes':['P0600','P0601','P0602','P0603','P0604','P0605','P0607','P0608','P0609'],'error_status_text':'MIL ON. Stored DTC P0606 — Control Module Processor. Indicates internal processor or related internal circuitry/software fault in the control module. Verify power and ground, inspect connectors and network communications, check for software corruption or required reflash, and consider module replacement if internal failure confirmed.','repair_difficulty':'hard','diagnostic_time':'1.5-4.0 hours'}} PMID: None. Invalid trailing. Please remove.} The last assistant message must be only JSON. Let's check: It seems I accidentally appended

Likely causes

  • Weak battery or low system voltage during operation or reprogramming
  • Loose or corroded ground at module chassis/engine ground
  • Damaged connector pins or water ingress at module housing
  • Failed internal memory or processor after an unsuccessful software update
  • Intermittent CAN/LIN wiring fault causing processor reset

Fault status

⚠️ Status
...
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4.0 hours
Repair manuals

Manual library for ISUZU

86

Browse 86 ISUZU manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

ISUZU

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Code

P0606

LAND ROVER P — Powertrain

Idle RPM lower than expected

Brand: LAND ROVER
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal CPU or PCB failure inside the control module (ECM/PCM/TCM)
  • Corrupted or failed module firmware/software (failed reflash)
  • Poor or intermittent power supply (battery, ignition-switched power)
  • Bad ground or high resistance ground connection to the module
  • Corroded, damaged, or loose module connector pins or wiring harness
  • CAN/LIN network short, open, or excessive noise interfering with module operation

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Stored P0606 code (may be accompanied by other P060x or communication codes)
  • Loss of communication with the affected control module on a scan tool
  • One or more drivability issues (no start, stall, limp mode) depending on which module is affected
  • Random or multiple unrelated DTCs set
  • Some vehicle functions controlled by the module inoperative or erratic

What to check

  • Connect a calibrated scan tool and read all stored/active codes and freeze-frame data
  • Verify ability to communicate with the suspected module; note whether it responds, times out, or is missing from the network
  • Check battery voltage with engine off and key on (should be ~12.0–12.6 V at rest, higher when charging) and ensure battery is charged
  • Visually inspect module, connector, and harness for corrosion, water intrusion, damaged wires, or pin damage
  • Perform continuity and resistance checks for module power and ground circuits (verify ignition-switched power and constant battery feed where applicable)
  • Inspect and test vehicle network (CAN/LIN) for short to ground/voltage or excessive resistance; monitor bus with oscilloscope if available

Signal parameters

  • Module battery/ignition supply: approximately battery voltage with key ON (typical 11–14.5 V)
  • Module ground: near 0 V; continuity to chassis ground expected
  • CAN bus idle: each CAN line typically around mid-supply at rest (~2.5 V on high/low lines); differential signal present during communication
  • Serial/LIN/K-line: idle and active voltages vary by system—verify against manufacturer specs
  • Module wake/sleep signal states: verify correct levels per vehicle documentation

Diagnostic algorithm

  1. Record all codes and freeze-frame data. Confirm P0606 is current or historic and note any accompanying codes. 2) Verify battery state of charge and charging system health; fully charge battery before extended diagnostics. 3) Confirm scan tool can communicate with the suspect module; if module not present on network, focus on power/ground and bus wiring. 4) Visually inspect module connector and harness for water, corrosion, or damage; repair any wiring faults found. 5) Measure supply voltage and ground at the module connector with key ON and engine OFF; repair any power/ground issues. 6) Check CAN/LIN bus continuity and voltages; use an oscilloscope to look for noise or missing frames if communication is intermittent. 7) Attempt to clear the code and re-scan; if code returns immediately and communication is present, try a manufacturer-directed software reflash/update and follow security/procedure steps. 8) If software update fails or the module refuses to reflash, or if internal hardware faults are indicated, prepare for module replacement. 9) If module replacement is required, program the new module per manufacturer procedures, including immobilizer/anti-theft pairing, adaptations, and relearns. 10) After repair, clear codes and perform full system verification and road test; monitor for reoccurrence.
  2. similar_codes':['P0600','P0601','P0602','P0603','P0604','P0605','P0607','P0608','P0609'],'error_status_text':'MIL ON. Stored DTC P0606 — Control Module Processor. Indicates internal processor or related internal circuitry/software fault in the control module. Verify power and ground, inspect connectors and network communications, check for software corruption or required reflash, and consider module replacement if internal failure confirmed.','repair_difficulty':'hard','diagnostic_time':'1.5-4.0 hours'}} PMID: None. Invalid trailing. Please remove.} The last assistant message must be only JSON. Let's check: It seems I accidentally appended

Likely causes

  • Weak battery or low system voltage during operation or reprogramming
  • Loose or corroded ground at module chassis/engine ground
  • Damaged connector pins or water ingress at module housing
  • Failed internal memory or processor after an unsuccessful software update
  • Intermittent CAN/LIN wiring fault causing processor reset

Fault status

⚠️ Status
...
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4.0 hours
320

Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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Code

P0606

MERCEDES-BENZ P — Powertrain

PCM Processor Fault

Brand: MERCEDES-BENZ
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal CPU or PCB failure inside the control module (ECM/PCM/TCM)
  • Corrupted or failed module firmware/software (failed reflash)
  • Poor or intermittent power supply (battery, ignition-switched power)
  • Bad ground or high resistance ground connection to the module
  • Corroded, damaged, or loose module connector pins or wiring harness
  • CAN/LIN network short, open, or excessive noise interfering with module operation

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Stored P0606 code (may be accompanied by other P060x or communication codes)
  • Loss of communication with the affected control module on a scan tool
  • One or more drivability issues (no start, stall, limp mode) depending on which module is affected
  • Random or multiple unrelated DTCs set
  • Some vehicle functions controlled by the module inoperative or erratic

What to check

  • Connect a calibrated scan tool and read all stored/active codes and freeze-frame data
  • Verify ability to communicate with the suspected module; note whether it responds, times out, or is missing from the network
  • Check battery voltage with engine off and key on (should be ~12.0–12.6 V at rest, higher when charging) and ensure battery is charged
  • Visually inspect module, connector, and harness for corrosion, water intrusion, damaged wires, or pin damage
  • Perform continuity and resistance checks for module power and ground circuits (verify ignition-switched power and constant battery feed where applicable)
  • Inspect and test vehicle network (CAN/LIN) for short to ground/voltage or excessive resistance; monitor bus with oscilloscope if available

Signal parameters

  • Module battery/ignition supply: approximately battery voltage with key ON (typical 11–14.5 V)
  • Module ground: near 0 V; continuity to chassis ground expected
  • CAN bus idle: each CAN line typically around mid-supply at rest (~2.5 V on high/low lines); differential signal present during communication
  • Serial/LIN/K-line: idle and active voltages vary by system—verify against manufacturer specs
  • Module wake/sleep signal states: verify correct levels per vehicle documentation

Diagnostic algorithm

  1. Record all codes and freeze-frame data. Confirm P0606 is current or historic and note any accompanying codes. 2) Verify battery state of charge and charging system health; fully charge battery before extended diagnostics. 3) Confirm scan tool can communicate with the suspect module; if module not present on network, focus on power/ground and bus wiring. 4) Visually inspect module connector and harness for water, corrosion, or damage; repair any wiring faults found. 5) Measure supply voltage and ground at the module connector with key ON and engine OFF; repair any power/ground issues. 6) Check CAN/LIN bus continuity and voltages; use an oscilloscope to look for noise or missing frames if communication is intermittent. 7) Attempt to clear the code and re-scan; if code returns immediately and communication is present, try a manufacturer-directed software reflash/update and follow security/procedure steps. 8) If software update fails or the module refuses to reflash, or if internal hardware faults are indicated, prepare for module replacement. 9) If module replacement is required, program the new module per manufacturer procedures, including immobilizer/anti-theft pairing, adaptations, and relearns. 10) After repair, clear codes and perform full system verification and road test; monitor for reoccurrence.
  2. similar_codes':['P0600','P0601','P0602','P0603','P0604','P0605','P0607','P0608','P0609'],'error_status_text':'MIL ON. Stored DTC P0606 — Control Module Processor. Indicates internal processor or related internal circuitry/software fault in the control module. Verify power and ground, inspect connectors and network communications, check for software corruption or required reflash, and consider module replacement if internal failure confirmed.','repair_difficulty':'hard','diagnostic_time':'1.5-4.0 hours'}} PMID: None. Invalid trailing. Please remove.} The last assistant message must be only JSON. Let's check: It seems I accidentally appended

Likely causes

  • Weak battery or low system voltage during operation or reprogramming
  • Loose or corroded ground at module chassis/engine ground
  • Damaged connector pins or water ingress at module housing
  • Failed internal memory or processor after an unsuccessful software update
  • Intermittent CAN/LIN wiring fault causing processor reset

Fault status

⚠️ Status
...
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4.0 hours
856

Browse 856 MERCEDES-BENZ manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MERCEDES-BENZ

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Code

P0606

MITSUBISHI P — Powertrain

Engine ECU

Brand: MITSUBISHI
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal CPU or PCB failure inside the control module (ECM/PCM/TCM)
  • Corrupted or failed module firmware/software (failed reflash)
  • Poor or intermittent power supply (battery, ignition-switched power)
  • Bad ground or high resistance ground connection to the module
  • Corroded, damaged, or loose module connector pins or wiring harness
  • CAN/LIN network short, open, or excessive noise interfering with module operation

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Stored P0606 code (may be accompanied by other P060x or communication codes)
  • Loss of communication with the affected control module on a scan tool
  • One or more drivability issues (no start, stall, limp mode) depending on which module is affected
  • Random or multiple unrelated DTCs set
  • Some vehicle functions controlled by the module inoperative or erratic

What to check

  • Connect a calibrated scan tool and read all stored/active codes and freeze-frame data
  • Verify ability to communicate with the suspected module; note whether it responds, times out, or is missing from the network
  • Check battery voltage with engine off and key on (should be ~12.0–12.6 V at rest, higher when charging) and ensure battery is charged
  • Visually inspect module, connector, and harness for corrosion, water intrusion, damaged wires, or pin damage
  • Perform continuity and resistance checks for module power and ground circuits (verify ignition-switched power and constant battery feed where applicable)
  • Inspect and test vehicle network (CAN/LIN) for short to ground/voltage or excessive resistance; monitor bus with oscilloscope if available

Signal parameters

  • Module battery/ignition supply: approximately battery voltage with key ON (typical 11–14.5 V)
  • Module ground: near 0 V; continuity to chassis ground expected
  • CAN bus idle: each CAN line typically around mid-supply at rest (~2.5 V on high/low lines); differential signal present during communication
  • Serial/LIN/K-line: idle and active voltages vary by system—verify against manufacturer specs
  • Module wake/sleep signal states: verify correct levels per vehicle documentation

Diagnostic algorithm

  1. Record all codes and freeze-frame data. Confirm P0606 is current or historic and note any accompanying codes. 2) Verify battery state of charge and charging system health; fully charge battery before extended diagnostics. 3) Confirm scan tool can communicate with the suspect module; if module not present on network, focus on power/ground and bus wiring. 4) Visually inspect module connector and harness for water, corrosion, or damage; repair any wiring faults found. 5) Measure supply voltage and ground at the module connector with key ON and engine OFF; repair any power/ground issues. 6) Check CAN/LIN bus continuity and voltages; use an oscilloscope to look for noise or missing frames if communication is intermittent. 7) Attempt to clear the code and re-scan; if code returns immediately and communication is present, try a manufacturer-directed software reflash/update and follow security/procedure steps. 8) If software update fails or the module refuses to reflash, or if internal hardware faults are indicated, prepare for module replacement. 9) If module replacement is required, program the new module per manufacturer procedures, including immobilizer/anti-theft pairing, adaptations, and relearns. 10) After repair, clear codes and perform full system verification and road test; monitor for reoccurrence.
  2. similar_codes':['P0600','P0601','P0602','P0603','P0604','P0605','P0607','P0608','P0609'],'error_status_text':'MIL ON. Stored DTC P0606 — Control Module Processor. Indicates internal processor or related internal circuitry/software fault in the control module. Verify power and ground, inspect connectors and network communications, check for software corruption or required reflash, and consider module replacement if internal failure confirmed.','repair_difficulty':'hard','diagnostic_time':'1.5-4.0 hours'}} PMID: None. Invalid trailing. Please remove.} The last assistant message must be only JSON. Let's check: It seems I accidentally appended

Likely causes

  • Weak battery or low system voltage during operation or reprogramming
  • Loose or corroded ground at module chassis/engine ground
  • Damaged connector pins or water ingress at module housing
  • Failed internal memory or processor after an unsuccessful software update
  • Intermittent CAN/LIN wiring fault causing processor reset

Fault status

⚠️ Status
...
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4.0 hours
406

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Code

P0606

OPEL P — Powertrain

System Voltage High Input

Brand: OPEL
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal CPU or PCB failure inside the control module (ECM/PCM/TCM)
  • Corrupted or failed module firmware/software (failed reflash)
  • Poor or intermittent power supply (battery, ignition-switched power)
  • Bad ground or high resistance ground connection to the module
  • Corroded, damaged, or loose module connector pins or wiring harness
  • CAN/LIN network short, open, or excessive noise interfering with module operation

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Stored P0606 code (may be accompanied by other P060x or communication codes)
  • Loss of communication with the affected control module on a scan tool
  • One or more drivability issues (no start, stall, limp mode) depending on which module is affected
  • Random or multiple unrelated DTCs set
  • Some vehicle functions controlled by the module inoperative or erratic

What to check

  • Connect a calibrated scan tool and read all stored/active codes and freeze-frame data
  • Verify ability to communicate with the suspected module; note whether it responds, times out, or is missing from the network
  • Check battery voltage with engine off and key on (should be ~12.0–12.6 V at rest, higher when charging) and ensure battery is charged
  • Visually inspect module, connector, and harness for corrosion, water intrusion, damaged wires, or pin damage
  • Perform continuity and resistance checks for module power and ground circuits (verify ignition-switched power and constant battery feed where applicable)
  • Inspect and test vehicle network (CAN/LIN) for short to ground/voltage or excessive resistance; monitor bus with oscilloscope if available

Signal parameters

  • Module battery/ignition supply: approximately battery voltage with key ON (typical 11–14.5 V)
  • Module ground: near 0 V; continuity to chassis ground expected
  • CAN bus idle: each CAN line typically around mid-supply at rest (~2.5 V on high/low lines); differential signal present during communication
  • Serial/LIN/K-line: idle and active voltages vary by system—verify against manufacturer specs
  • Module wake/sleep signal states: verify correct levels per vehicle documentation

Diagnostic algorithm

  1. Record all codes and freeze-frame data. Confirm P0606 is current or historic and note any accompanying codes. 2) Verify battery state of charge and charging system health; fully charge battery before extended diagnostics. 3) Confirm scan tool can communicate with the suspect module; if module not present on network, focus on power/ground and bus wiring. 4) Visually inspect module connector and harness for water, corrosion, or damage; repair any wiring faults found. 5) Measure supply voltage and ground at the module connector with key ON and engine OFF; repair any power/ground issues. 6) Check CAN/LIN bus continuity and voltages; use an oscilloscope to look for noise or missing frames if communication is intermittent. 7) Attempt to clear the code and re-scan; if code returns immediately and communication is present, try a manufacturer-directed software reflash/update and follow security/procedure steps. 8) If software update fails or the module refuses to reflash, or if internal hardware faults are indicated, prepare for module replacement. 9) If module replacement is required, program the new module per manufacturer procedures, including immobilizer/anti-theft pairing, adaptations, and relearns. 10) After repair, clear codes and perform full system verification and road test; monitor for reoccurrence.
  2. similar_codes':['P0600','P0601','P0602','P0603','P0604','P0605','P0607','P0608','P0609'],'error_status_text':'MIL ON. Stored DTC P0606 — Control Module Processor. Indicates internal processor or related internal circuitry/software fault in the control module. Verify power and ground, inspect connectors and network communications, check for software corruption or required reflash, and consider module replacement if internal failure confirmed.','repair_difficulty':'hard','diagnostic_time':'1.5-4.0 hours'}} PMID: None. Invalid trailing. Please remove.} The last assistant message must be only JSON. Let's check: It seems I accidentally appended

Likely causes

  • Weak battery or low system voltage during operation or reprogramming
  • Loose or corroded ground at module chassis/engine ground
  • Damaged connector pins or water ingress at module housing
  • Failed internal memory or processor after an unsuccessful software update
  • Intermittent CAN/LIN wiring fault causing processor reset

Fault status

⚠️ Status
...
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4.0 hours
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email
Code

P0606

SEAT P — Powertrain

PCM processor - fault

Brand: SEAT
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal CPU or PCB failure inside the control module (ECM/PCM/TCM)
  • Corrupted or failed module firmware/software (failed reflash)
  • Poor or intermittent power supply (battery, ignition-switched power)
  • Bad ground or high resistance ground connection to the module
  • Corroded, damaged, or loose module connector pins or wiring harness
  • CAN/LIN network short, open, or excessive noise interfering with module operation

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Stored P0606 code (may be accompanied by other P060x or communication codes)
  • Loss of communication with the affected control module on a scan tool
  • One or more drivability issues (no start, stall, limp mode) depending on which module is affected
  • Random or multiple unrelated DTCs set
  • Some vehicle functions controlled by the module inoperative or erratic

What to check

  • Connect a calibrated scan tool and read all stored/active codes and freeze-frame data
  • Verify ability to communicate with the suspected module; note whether it responds, times out, or is missing from the network
  • Check battery voltage with engine off and key on (should be ~12.0–12.6 V at rest, higher when charging) and ensure battery is charged
  • Visually inspect module, connector, and harness for corrosion, water intrusion, damaged wires, or pin damage
  • Perform continuity and resistance checks for module power and ground circuits (verify ignition-switched power and constant battery feed where applicable)
  • Inspect and test vehicle network (CAN/LIN) for short to ground/voltage or excessive resistance; monitor bus with oscilloscope if available

Signal parameters

  • Module battery/ignition supply: approximately battery voltage with key ON (typical 11–14.5 V)
  • Module ground: near 0 V; continuity to chassis ground expected
  • CAN bus idle: each CAN line typically around mid-supply at rest (~2.5 V on high/low lines); differential signal present during communication
  • Serial/LIN/K-line: idle and active voltages vary by system—verify against manufacturer specs
  • Module wake/sleep signal states: verify correct levels per vehicle documentation

Diagnostic algorithm

  1. Record all codes and freeze-frame data. Confirm P0606 is current or historic and note any accompanying codes. 2) Verify battery state of charge and charging system health; fully charge battery before extended diagnostics. 3) Confirm scan tool can communicate with the suspect module; if module not present on network, focus on power/ground and bus wiring. 4) Visually inspect module connector and harness for water, corrosion, or damage; repair any wiring faults found. 5) Measure supply voltage and ground at the module connector with key ON and engine OFF; repair any power/ground issues. 6) Check CAN/LIN bus continuity and voltages; use an oscilloscope to look for noise or missing frames if communication is intermittent. 7) Attempt to clear the code and re-scan; if code returns immediately and communication is present, try a manufacturer-directed software reflash/update and follow security/procedure steps. 8) If software update fails or the module refuses to reflash, or if internal hardware faults are indicated, prepare for module replacement. 9) If module replacement is required, program the new module per manufacturer procedures, including immobilizer/anti-theft pairing, adaptations, and relearns. 10) After repair, clear codes and perform full system verification and road test; monitor for reoccurrence.
  2. similar_codes':['P0600','P0601','P0602','P0603','P0604','P0605','P0607','P0608','P0609'],'error_status_text':'MIL ON. Stored DTC P0606 — Control Module Processor. Indicates internal processor or related internal circuitry/software fault in the control module. Verify power and ground, inspect connectors and network communications, check for software corruption or required reflash, and consider module replacement if internal failure confirmed.','repair_difficulty':'hard','diagnostic_time':'1.5-4.0 hours'}} PMID: None. Invalid trailing. Please remove.} The last assistant message must be only JSON. Let's check: It seems I accidentally appended

Likely causes

  • Weak battery or low system voltage during operation or reprogramming
  • Loose or corroded ground at module chassis/engine ground
  • Damaged connector pins or water ingress at module housing
  • Failed internal memory or processor after an unsuccessful software update
  • Intermittent CAN/LIN wiring fault causing processor reset

Fault status

⚠️ Status
...
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4.0 hours
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

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