Code
P1776
DAEWOO
P — Powertrain
Power control unit mal
Views:
UK: 2
EN: 5
RU: 6
AI status
Completed
Completed
100%
Causes
- Faulty power control unit (PCU) / module internal failure
- Low or intermittent battery/charging system voltage
- Blown fuse or faulty relay supplying the PCU
- Damaged, corroded or loose wiring/connectors to the PCU
- Poor ground connection at module or chassis
- Loss of CAN/serial communication or bus fault
Symptoms
- Malfunction Indicator Lamp (MIL) or warning lamp illuminated
- Loss of some electrical functions or erratic behavior of systems controlled by PCU
- Transmission shifting abnormalities (if PCU interfaces with TCM)
- Vehicle may enter limp/home mode or fail to start depending on affected circuits
- Intermittent faults that clear and reappear, or permanent code stored
What to check
- Read and record all stored DTCs and freeze‑frame data with a capable scan tool
- Check and record battery voltage with key ON and engine running
- Inspect PCU connectors and harness for corrosion, water, damaged pins or loose terminals
- Check and verify all related fuses and relays are intact and seated
- Verify good engine/chassis ground points and continuity to module ground pin
- Check CAN bus or serial communication status on scan tool and for other communication codes
Signal parameters
- Battery supply voltage to PCU: ~12.4–14.8 V (key ON and engine running)
- Ignition/switched power feed: key ON = battery voltage present at feed pin
- Module ground: near 0 Ω to chassis ground
- CAN High/Low idle voltages: approx. 2.5 V midpoint (varies by vehicle)
- Reference/logic supply (if used): ~5.0 V stable for sensor/logic circuits
- Communication traffic present on bus when key ON/engine running (packets visible on scan tool)
Diagnostic algorithm
- Connect a full‑function scan tool, read all codes and note freeze frame/conditions when P1776 set.
- Verify battery state of charge and charging system; charge or replace battery if voltage is low.
- Inspect PCU connectors and wiring for corrosion, damaged insulation, bent pins or water damage; repair as needed.
- Check fuses and relays that supply the PCU. Replace any blown fuses and retest.
- Measure supply voltage and ground at the PCU harness pins with connector connected; compare to expected values.
- Check CAN/communication lines for continuity and proper idle voltages; use oscilloscope or bus analyzer if available.
- Perform wiggle/stress test of wiring while monitoring live data and DTCs to find intermittent faults.
- If wiring and power are good and communication present but fault persists, consult service bulletins for software updates or reflash the module per manufacturer procedure.
- If replacement of the PCU is required, verify correct part number, program/configure to vehicle per factory procedure and clear codes; retest for proper operation.
- After repairs, clear codes and verify that the fault does not return under the reported conditions.
Likely causes
- Corroded multi‑pin connector at the PCU causing intermittent contact
- Battery voltage below specification during key ON or cranking
- Water ingress into PCU or harness causing shorts
- Blown fuse or failed power relay feeding the PCU
- Broken wire or pinched harness between PCU and main fuse/ECU
- Module internal component failure after electrical event
Fault status
Status
Power control unit malfunction — the vehicle detected abnormal power, ground, communication, or internal failure in the PCU. Inspect power/ground, connectors, communication bus and module integrity.
Repair difficulty: Hard
Diagnostic time: 1.5-3.5 hours
Similar codes
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Code
P1776
JAGUAR
P — Powertrain
Ignition Retard Request Duration
Views:
UK: 16
EN: 20
RU: 32
AI status
Completed
Completed
100%
Causes
- Faulty power control unit (PCU) / module internal failure
- Low or intermittent battery/charging system voltage
- Blown fuse or faulty relay supplying the PCU
- Damaged, corroded or loose wiring/connectors to the PCU
- Poor ground connection at module or chassis
- Loss of CAN/serial communication or bus fault
Symptoms
- Malfunction Indicator Lamp (MIL) or warning lamp illuminated
- Loss of some electrical functions or erratic behavior of systems controlled by PCU
- Transmission shifting abnormalities (if PCU interfaces with TCM)
- Vehicle may enter limp/home mode or fail to start depending on affected circuits
- Intermittent faults that clear and reappear, or permanent code stored
What to check
- Read and record all stored DTCs and freeze‑frame data with a capable scan tool
- Check and record battery voltage with key ON and engine running
- Inspect PCU connectors and harness for corrosion, water, damaged pins or loose terminals
- Check and verify all related fuses and relays are intact and seated
- Verify good engine/chassis ground points and continuity to module ground pin
- Check CAN bus or serial communication status on scan tool and for other communication codes
Signal parameters
- Battery supply voltage to PCU: ~12.4–14.8 V (key ON and engine running)
- Ignition/switched power feed: key ON = battery voltage present at feed pin
- Module ground: near 0 Ω to chassis ground
- CAN High/Low idle voltages: approx. 2.5 V midpoint (varies by vehicle)
- Reference/logic supply (if used): ~5.0 V stable for sensor/logic circuits
- Communication traffic present on bus when key ON/engine running (packets visible on scan tool)
Diagnostic algorithm
- Connect a full‑function scan tool, read all codes and note freeze frame/conditions when P1776 set.
- Verify battery state of charge and charging system; charge or replace battery if voltage is low.
- Inspect PCU connectors and wiring for corrosion, damaged insulation, bent pins or water damage; repair as needed.
- Check fuses and relays that supply the PCU. Replace any blown fuses and retest.
- Measure supply voltage and ground at the PCU harness pins with connector connected; compare to expected values.
- Check CAN/communication lines for continuity and proper idle voltages; use oscilloscope or bus analyzer if available.
- Perform wiggle/stress test of wiring while monitoring live data and DTCs to find intermittent faults.
- If wiring and power are good and communication present but fault persists, consult service bulletins for software updates or reflash the module per manufacturer procedure.
- If replacement of the PCU is required, verify correct part number, program/configure to vehicle per factory procedure and clear codes; retest for proper operation.
- After repairs, clear codes and verify that the fault does not return under the reported conditions.
Likely causes
- Corroded multi‑pin connector at the PCU causing intermittent contact
- Battery voltage below specification during key ON or cranking
- Water ingress into PCU or harness causing shorts
- Blown fuse or failed power relay feeding the PCU
- Broken wire or pinched harness between PCU and main fuse/ECU
- Module internal component failure after electrical event
Fault status
Status
Power control unit malfunction — the vehicle detected abnormal power, ground, communication, or internal failure in the PCU. Inspect power/ground, connectors, communication bus and module integrity.
Repair difficulty: Hard
Diagnostic time: 1.5-3.5 hours
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Code
P1776
LAND ROVER
P — Powertrain
Failure in the duration of the ignition delay request Torque reduction error Malfunction of the load control
Views:
UK: 4
EN: 11
RU: 9
AI status
Completed
Completed
100%
Causes
- Faulty power control unit (PCU) / module internal failure
- Low or intermittent battery/charging system voltage
- Blown fuse or faulty relay supplying the PCU
- Damaged, corroded or loose wiring/connectors to the PCU
- Poor ground connection at module or chassis
- Loss of CAN/serial communication or bus fault
Symptoms
- Malfunction Indicator Lamp (MIL) or warning lamp illuminated
- Loss of some electrical functions or erratic behavior of systems controlled by PCU
- Transmission shifting abnormalities (if PCU interfaces with TCM)
- Vehicle may enter limp/home mode or fail to start depending on affected circuits
- Intermittent faults that clear and reappear, or permanent code stored
What to check
- Read and record all stored DTCs and freeze‑frame data with a capable scan tool
- Check and record battery voltage with key ON and engine running
- Inspect PCU connectors and harness for corrosion, water, damaged pins or loose terminals
- Check and verify all related fuses and relays are intact and seated
- Verify good engine/chassis ground points and continuity to module ground pin
- Check CAN bus or serial communication status on scan tool and for other communication codes
Signal parameters
- Battery supply voltage to PCU: ~12.4–14.8 V (key ON and engine running)
- Ignition/switched power feed: key ON = battery voltage present at feed pin
- Module ground: near 0 Ω to chassis ground
- CAN High/Low idle voltages: approx. 2.5 V midpoint (varies by vehicle)
- Reference/logic supply (if used): ~5.0 V stable for sensor/logic circuits
- Communication traffic present on bus when key ON/engine running (packets visible on scan tool)
Diagnostic algorithm
- Connect a full‑function scan tool, read all codes and note freeze frame/conditions when P1776 set.
- Verify battery state of charge and charging system; charge or replace battery if voltage is low.
- Inspect PCU connectors and wiring for corrosion, damaged insulation, bent pins or water damage; repair as needed.
- Check fuses and relays that supply the PCU. Replace any blown fuses and retest.
- Measure supply voltage and ground at the PCU harness pins with connector connected; compare to expected values.
- Check CAN/communication lines for continuity and proper idle voltages; use oscilloscope or bus analyzer if available.
- Perform wiggle/stress test of wiring while monitoring live data and DTCs to find intermittent faults.
- If wiring and power are good and communication present but fault persists, consult service bulletins for software updates or reflash the module per manufacturer procedure.
- If replacement of the PCU is required, verify correct part number, program/configure to vehicle per factory procedure and clear codes; retest for proper operation.
- After repairs, clear codes and verify that the fault does not return under the reported conditions.
Likely causes
- Corroded multi‑pin connector at the PCU causing intermittent contact
- Battery voltage below specification during key ON or cranking
- Water ingress into PCU or harness causing shorts
- Blown fuse or failed power relay feeding the PCU
- Broken wire or pinched harness between PCU and main fuse/ECU
- Module internal component failure after electrical event
Fault status
Status
Power control unit malfunction — the vehicle detected abnormal power, ground, communication, or internal failure in the PCU. Inspect power/ground, connectors, communication bus and module integrity.
Repair difficulty: Hard
Diagnostic time: 1.5-3.5 hours
Similar codes
Workshop Manuals
Repair manuals for LAND ROVER
3
Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
Workshop Manual199,00 UAH
Land Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)
Workshop Manual199,00 UAH
Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)
Workshop Manual199,00 UAH
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Code
P1776
MAZDA
P — Powertrain
Torque Down Signal 2 Circuit
Views:
UK: 16
EN: 25
RU: 31
AI status
Completed
Completed
100%
Causes
- Faulty power control unit (PCU) / module internal failure
- Low or intermittent battery/charging system voltage
- Blown fuse or faulty relay supplying the PCU
- Damaged, corroded or loose wiring/connectors to the PCU
- Poor ground connection at module or chassis
- Loss of CAN/serial communication or bus fault
Symptoms
- Malfunction Indicator Lamp (MIL) or warning lamp illuminated
- Loss of some electrical functions or erratic behavior of systems controlled by PCU
- Transmission shifting abnormalities (if PCU interfaces with TCM)
- Vehicle may enter limp/home mode or fail to start depending on affected circuits
- Intermittent faults that clear and reappear, or permanent code stored
What to check
- Read and record all stored DTCs and freeze‑frame data with a capable scan tool
- Check and record battery voltage with key ON and engine running
- Inspect PCU connectors and harness for corrosion, water, damaged pins or loose terminals
- Check and verify all related fuses and relays are intact and seated
- Verify good engine/chassis ground points and continuity to module ground pin
- Check CAN bus or serial communication status on scan tool and for other communication codes
Signal parameters
- Battery supply voltage to PCU: ~12.4–14.8 V (key ON and engine running)
- Ignition/switched power feed: key ON = battery voltage present at feed pin
- Module ground: near 0 Ω to chassis ground
- CAN High/Low idle voltages: approx. 2.5 V midpoint (varies by vehicle)
- Reference/logic supply (if used): ~5.0 V stable for sensor/logic circuits
- Communication traffic present on bus when key ON/engine running (packets visible on scan tool)
Diagnostic algorithm
- Connect a full‑function scan tool, read all codes and note freeze frame/conditions when P1776 set.
- Verify battery state of charge and charging system; charge or replace battery if voltage is low.
- Inspect PCU connectors and wiring for corrosion, damaged insulation, bent pins or water damage; repair as needed.
- Check fuses and relays that supply the PCU. Replace any blown fuses and retest.
- Measure supply voltage and ground at the PCU harness pins with connector connected; compare to expected values.
- Check CAN/communication lines for continuity and proper idle voltages; use oscilloscope or bus analyzer if available.
- Perform wiggle/stress test of wiring while monitoring live data and DTCs to find intermittent faults.
- If wiring and power are good and communication present but fault persists, consult service bulletins for software updates or reflash the module per manufacturer procedure.
- If replacement of the PCU is required, verify correct part number, program/configure to vehicle per factory procedure and clear codes; retest for proper operation.
- After repairs, clear codes and verify that the fault does not return under the reported conditions.
Likely causes
- Corroded multi‑pin connector at the PCU causing intermittent contact
- Battery voltage below specification during key ON or cranking
- Water ingress into PCU or harness causing shorts
- Blown fuse or failed power relay feeding the PCU
- Broken wire or pinched harness between PCU and main fuse/ECU
- Module internal component failure after electrical event
Fault status
Status
Power control unit malfunction — the vehicle detected abnormal power, ground, communication, or internal failure in the PCU. Inspect power/ground, connectors, communication bus and module integrity.
Repair difficulty: Hard
Diagnostic time: 1.5-3.5 hours
Similar codes
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Code
P1776
MITSUBISHI
P — Powertrain
OD solenoid
Views:
UK: 6
EN: 12
RU: 15
AI status
Completed
Completed
100%
Causes
- Faulty power control unit (PCU) / module internal failure
- Low or intermittent battery/charging system voltage
- Blown fuse or faulty relay supplying the PCU
- Damaged, corroded or loose wiring/connectors to the PCU
- Poor ground connection at module or chassis
- Loss of CAN/serial communication or bus fault
Symptoms
- Malfunction Indicator Lamp (MIL) or warning lamp illuminated
- Loss of some electrical functions or erratic behavior of systems controlled by PCU
- Transmission shifting abnormalities (if PCU interfaces with TCM)
- Vehicle may enter limp/home mode or fail to start depending on affected circuits
- Intermittent faults that clear and reappear, or permanent code stored
What to check
- Read and record all stored DTCs and freeze‑frame data with a capable scan tool
- Check and record battery voltage with key ON and engine running
- Inspect PCU connectors and harness for corrosion, water, damaged pins or loose terminals
- Check and verify all related fuses and relays are intact and seated
- Verify good engine/chassis ground points and continuity to module ground pin
- Check CAN bus or serial communication status on scan tool and for other communication codes
Signal parameters
- Battery supply voltage to PCU: ~12.4–14.8 V (key ON and engine running)
- Ignition/switched power feed: key ON = battery voltage present at feed pin
- Module ground: near 0 Ω to chassis ground
- CAN High/Low idle voltages: approx. 2.5 V midpoint (varies by vehicle)
- Reference/logic supply (if used): ~5.0 V stable for sensor/logic circuits
- Communication traffic present on bus when key ON/engine running (packets visible on scan tool)
Diagnostic algorithm
- Connect a full‑function scan tool, read all codes and note freeze frame/conditions when P1776 set.
- Verify battery state of charge and charging system; charge or replace battery if voltage is low.
- Inspect PCU connectors and wiring for corrosion, damaged insulation, bent pins or water damage; repair as needed.
- Check fuses and relays that supply the PCU. Replace any blown fuses and retest.
- Measure supply voltage and ground at the PCU harness pins with connector connected; compare to expected values.
- Check CAN/communication lines for continuity and proper idle voltages; use oscilloscope or bus analyzer if available.
- Perform wiggle/stress test of wiring while monitoring live data and DTCs to find intermittent faults.
- If wiring and power are good and communication present but fault persists, consult service bulletins for software updates or reflash the module per manufacturer procedure.
- If replacement of the PCU is required, verify correct part number, program/configure to vehicle per factory procedure and clear codes; retest for proper operation.
- After repairs, clear codes and verify that the fault does not return under the reported conditions.
Likely causes
- Corroded multi‑pin connector at the PCU causing intermittent contact
- Battery voltage below specification during key ON or cranking
- Water ingress into PCU or harness causing shorts
- Blown fuse or failed power relay feeding the PCU
- Broken wire or pinched harness between PCU and main fuse/ECU
- Module internal component failure after electrical event
Fault status
Status
Power control unit malfunction — the vehicle detected abnormal power, ground, communication, or internal failure in the PCU. Inspect power/ground, connectors, communication bus and module integrity.
Repair difficulty: Hard
Diagnostic time: 1.5-3.5 hours
Similar codes
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
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Code
P1776
Other
P — Powertrain
Ignition Retard Request Duration Fault
Views:
UK: 21
EN: 25
RU: 37
AI status
Completed
Completed
100%
Causes
- Faulty power control unit (PCU) / module internal failure
- Low or intermittent battery/charging system voltage
- Blown fuse or faulty relay supplying the PCU
- Damaged, corroded or loose wiring/connectors to the PCU
- Poor ground connection at module or chassis
- Loss of CAN/serial communication or bus fault
Symptoms
- Malfunction Indicator Lamp (MIL) or warning lamp illuminated
- Loss of some electrical functions or erratic behavior of systems controlled by PCU
- Transmission shifting abnormalities (if PCU interfaces with TCM)
- Vehicle may enter limp/home mode or fail to start depending on affected circuits
- Intermittent faults that clear and reappear, or permanent code stored
What to check
- Read and record all stored DTCs and freeze‑frame data with a capable scan tool
- Check and record battery voltage with key ON and engine running
- Inspect PCU connectors and harness for corrosion, water, damaged pins or loose terminals
- Check and verify all related fuses and relays are intact and seated
- Verify good engine/chassis ground points and continuity to module ground pin
- Check CAN bus or serial communication status on scan tool and for other communication codes
Signal parameters
- Battery supply voltage to PCU: ~12.4–14.8 V (key ON and engine running)
- Ignition/switched power feed: key ON = battery voltage present at feed pin
- Module ground: near 0 Ω to chassis ground
- CAN High/Low idle voltages: approx. 2.5 V midpoint (varies by vehicle)
- Reference/logic supply (if used): ~5.0 V stable for sensor/logic circuits
- Communication traffic present on bus when key ON/engine running (packets visible on scan tool)
Diagnostic algorithm
- Connect a full‑function scan tool, read all codes and note freeze frame/conditions when P1776 set.
- Verify battery state of charge and charging system; charge or replace battery if voltage is low.
- Inspect PCU connectors and wiring for corrosion, damaged insulation, bent pins or water damage; repair as needed.
- Check fuses and relays that supply the PCU. Replace any blown fuses and retest.
- Measure supply voltage and ground at the PCU harness pins with connector connected; compare to expected values.
- Check CAN/communication lines for continuity and proper idle voltages; use oscilloscope or bus analyzer if available.
- Perform wiggle/stress test of wiring while monitoring live data and DTCs to find intermittent faults.
- If wiring and power are good and communication present but fault persists, consult service bulletins for software updates or reflash the module per manufacturer procedure.
- If replacement of the PCU is required, verify correct part number, program/configure to vehicle per factory procedure and clear codes; retest for proper operation.
- After repairs, clear codes and verify that the fault does not return under the reported conditions.
Likely causes
- Corroded multi‑pin connector at the PCU causing intermittent contact
- Battery voltage below specification during key ON or cranking
- Water ingress into PCU or harness causing shorts
- Blown fuse or failed power relay feeding the PCU
- Broken wire or pinched harness between PCU and main fuse/ECU
- Module internal component failure after electrical event
Fault status
Status
Power control unit malfunction — the vehicle detected abnormal power, ground, communication, or internal failure in the PCU. Inspect power/ground, connectors, communication bus and module integrity.
Repair difficulty: Hard
Diagnostic time: 1.5-3.5 hours
Similar codes
Workshop Manuals
Available brands with manuals
2
AUDI 11
6-speed manual gearbox 0B1, front-wheel drive — Workshop Manual (Edition 05.2014)
Workshop Manual199,00 UAH
Audi A3 (1997) – 1.6L 4-cylinder (2‑valve) Engine Mechanical Components Service Manual (AEH, AKL, APF) – Edition 07.2002
Workshop Manual199,00 UAH
AUDI A3 (2004) Workshop Manual — 2.0L FSI Turbo (4‑cyl, 4‑valve) Engine, Mechanics — Edition 03.2017
Workshop Manual199,00 UAH
Audi A3 2004 — Electrical System (Workshop Manual, Edition 02.2018)
Workshop Manual199,00 UAH
Audi A4 / A4 Cabriolet – 4.2 l V8 (5‑valve, timing chains) – Workshop Manual (Mechanics) – Edition 04.2007
Workshop Manual199,00 UAH
Audi A4 / A4 Cabriolet — Auxiliary Heater Workshop Manual (Edition 08.2004)
Workshop Manual199,00 UAH
Audi A4 / A4 Cabriolet (1.8T 4‑cyl turbo) — Motronic Injection & Ignition System Service Manual (Edition 01.2015)
Workshop Manual199,00 UAH
Audi A8 (2003) — Electrical System Workshop Manual (Edition 08.2014)
Workshop Manual199,00 UAH
Audi Q4 e-tron (Type F4) - Self-study Programme SSP 685
Workshop Manual199,00 UAH
Audi Q8 (2018) — Electrical System Workshop Manual (Edition 05.2019)
Workshop Manual199,00 UAH
Audi Servicing Manual — 7‑Speed Dual Clutch Transmission 0CJ / 0CL / 0CK / 0DN / 0DP / 0HL (Edition 05.2018)
Workshop Manual199,00 UAH
LAND ROVER 3
Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
Workshop Manual199,00 UAH
Land Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)
Workshop Manual199,00 UAH
Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)
Workshop Manual199,00 UAH
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Code
P1776
RAM
P — Powertrain
Solenoid switch valve latched in the LR position
Views:
UK: 2
EN: 5
RU: 6
AI status
Completed
Completed
100%
Causes
- Faulty power control unit (PCU) / module internal failure
- Low or intermittent battery/charging system voltage
- Blown fuse or faulty relay supplying the PCU
- Damaged, corroded or loose wiring/connectors to the PCU
- Poor ground connection at module or chassis
- Loss of CAN/serial communication or bus fault
Symptoms
- Malfunction Indicator Lamp (MIL) or warning lamp illuminated
- Loss of some electrical functions or erratic behavior of systems controlled by PCU
- Transmission shifting abnormalities (if PCU interfaces with TCM)
- Vehicle may enter limp/home mode or fail to start depending on affected circuits
- Intermittent faults that clear and reappear, or permanent code stored
What to check
- Read and record all stored DTCs and freeze‑frame data with a capable scan tool
- Check and record battery voltage with key ON and engine running
- Inspect PCU connectors and harness for corrosion, water, damaged pins or loose terminals
- Check and verify all related fuses and relays are intact and seated
- Verify good engine/chassis ground points and continuity to module ground pin
- Check CAN bus or serial communication status on scan tool and for other communication codes
Signal parameters
- Battery supply voltage to PCU: ~12.4–14.8 V (key ON and engine running)
- Ignition/switched power feed: key ON = battery voltage present at feed pin
- Module ground: near 0 Ω to chassis ground
- CAN High/Low idle voltages: approx. 2.5 V midpoint (varies by vehicle)
- Reference/logic supply (if used): ~5.0 V stable for sensor/logic circuits
- Communication traffic present on bus when key ON/engine running (packets visible on scan tool)
Diagnostic algorithm
- Connect a full‑function scan tool, read all codes and note freeze frame/conditions when P1776 set.
- Verify battery state of charge and charging system; charge or replace battery if voltage is low.
- Inspect PCU connectors and wiring for corrosion, damaged insulation, bent pins or water damage; repair as needed.
- Check fuses and relays that supply the PCU. Replace any blown fuses and retest.
- Measure supply voltage and ground at the PCU harness pins with connector connected; compare to expected values.
- Check CAN/communication lines for continuity and proper idle voltages; use oscilloscope or bus analyzer if available.
- Perform wiggle/stress test of wiring while monitoring live data and DTCs to find intermittent faults.
- If wiring and power are good and communication present but fault persists, consult service bulletins for software updates or reflash the module per manufacturer procedure.
- If replacement of the PCU is required, verify correct part number, program/configure to vehicle per factory procedure and clear codes; retest for proper operation.
- After repairs, clear codes and verify that the fault does not return under the reported conditions.
Likely causes
- Corroded multi‑pin connector at the PCU causing intermittent contact
- Battery voltage below specification during key ON or cranking
- Water ingress into PCU or harness causing shorts
- Blown fuse or failed power relay feeding the PCU
- Broken wire or pinched harness between PCU and main fuse/ECU
- Module internal component failure after electrical event
Fault status
Status
Power control unit malfunction — the vehicle detected abnormal power, ground, communication, or internal failure in the PCU. Inspect power/ground, connectors, communication bus and module integrity.
Repair difficulty: Hard
Diagnostic time: 1.5-3.5 hours
Similar codes
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email