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Home / DTC / C1382 — Chassis Control Module Internal Fault

C1382 — Chassis Control Module Internal Fault

Detailed page for trouble code C1382.

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C1382

Generic C — Chassis

Chassis Control Module Internal Fault

Brand: Generic
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal module hardware failure (processor, memory, I/O)
  • Corrupted or failed module firmware/software
  • Loss or instability of module supply voltage or ground
  • Faulty or corroded connector or wiring to the module
  • Bus communication errors on CAN/LIN (shorts, high resistance, missing termination)
  • Water intrusion or physical damage to the module

Symptoms

  • Chassis/ABS/traction/stability warning lamp illuminated
  • Loss or reduction of ABS, traction control, or stability features
  • Related systems may enter limp or restricted mode
  • Intermittent or permanent loss of communication with CCM on scan tool
  • Erratic operation of chassis-related features or false warnings

What to check

  • Connect a factory-level or capable OBD-II scan tool; read stored/active DTCs and freeze-frame data
  • Check for related codes in ABS, BCM, engine and gateway modules (communication faults)
  • Visually inspect CCM connector, pins and harness for corrosion, water, damage or deformation
  • Check fuses and relays that supply the module
  • Measure module supply voltage (key ON) at the module connector and compare to battery voltage
  • Check module ground(s) for continuity and low resistance to battery negative

Signal parameters

  • Battery voltage (key ON): 11.5–14.5 V (nominal ~12.0–14.0 V)
  • Module wake/supply voltage present at connector: ~11–14.5 V
  • Ground resistance (module ground to battery negative):
  • CAN bus idle voltages: CAN_H ≈ 2.4–2.6 V, CAN_L ≈ 2.4–2.6 V; dominant state ~CAN_H 3.5 V / CAN_L 1.5 V
  • CAN bus termination resistance (across CAN_H to CAN_L): approx. 60 Ω (two 120 Ω in parallel)

Diagnostic algorithm

  1. Read and document all stored/active DTCs and freeze-frame data with a capable scan tool; note related modules reporting comms faults.
  2. Inspect the CCM connector and harness for damage, corrosion, or water; repair as needed.
  3. Verify battery condition and measure supply voltage at the module with key ON and during cranking; ensure voltage stays within specified range.
  4. Check fuses and relays powering the module; replace any blown fuses and re-test.
  5. Measure ground resistance from module ground pin to chassis/battery negative; repair any high-resistance grounds.
  6. Check CAN/LIN bus wiring: measure idle voltages at module connector, verify termination resistance ~60 Ω, and look for shorts to battery or ground. Repair wiring faults.
  7. If power/ground and bus are good, perform a scan-tool software/firmware check and apply any OEM updates/reprogramming per service information.
  8. If the module remains faulty after software reflash and confirming correct power/ground/communications, replace the module. Follow programming/initialization procedures and observe immobilizer/gateway requirements if applicable.
  9. After repair or replacement, clear codes and perform a full functional test and road test to confirm repair. Document findings and final verification data.

Likely causes

  • Poor power/ground to the module (low battery voltage, blown fuse, high-resistance ground)
  • CAN bus wiring fault, missing termination or short to voltage/ground
  • Corroded/loose connector at module
  • Module firmware error requiring reflash
  • Actual internal hardware failure of the module

Fault status

⚠️ Status
Chassis Control Module Internal Fault - internal hardware/software error reported by CCM. Verify module power, ground and bus communications; perform software update before replacing module.
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.0-3.0 hours

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Code

C1382

MITSUBISHI C — Chassis

Straight G SNSR.low voltage

Brand: MITSUBISHI
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Internal module hardware failure (processor, memory, I/O)
  • Corrupted or failed module firmware/software
  • Loss or instability of module supply voltage or ground
  • Faulty or corroded connector or wiring to the module
  • Bus communication errors on CAN/LIN (shorts, high resistance, missing termination)
  • Water intrusion or physical damage to the module

Symptoms

  • Chassis/ABS/traction/stability warning lamp illuminated
  • Loss or reduction of ABS, traction control, or stability features
  • Related systems may enter limp or restricted mode
  • Intermittent or permanent loss of communication with CCM on scan tool
  • Erratic operation of chassis-related features or false warnings

What to check

  • Connect a factory-level or capable OBD-II scan tool; read stored/active DTCs and freeze-frame data
  • Check for related codes in ABS, BCM, engine and gateway modules (communication faults)
  • Visually inspect CCM connector, pins and harness for corrosion, water, damage or deformation
  • Check fuses and relays that supply the module
  • Measure module supply voltage (key ON) at the module connector and compare to battery voltage
  • Check module ground(s) for continuity and low resistance to battery negative

Signal parameters

  • Battery voltage (key ON): 11.5–14.5 V (nominal ~12.0–14.0 V)
  • Module wake/supply voltage present at connector: ~11–14.5 V
  • Ground resistance (module ground to battery negative):
  • CAN bus idle voltages: CAN_H ≈ 2.4–2.6 V, CAN_L ≈ 2.4–2.6 V; dominant state ~CAN_H 3.5 V / CAN_L 1.5 V
  • CAN bus termination resistance (across CAN_H to CAN_L): approx. 60 Ω (two 120 Ω in parallel)

Diagnostic algorithm

  1. Read and document all stored/active DTCs and freeze-frame data with a capable scan tool; note related modules reporting comms faults.
  2. Inspect the CCM connector and harness for damage, corrosion, or water; repair as needed.
  3. Verify battery condition and measure supply voltage at the module with key ON and during cranking; ensure voltage stays within specified range.
  4. Check fuses and relays powering the module; replace any blown fuses and re-test.
  5. Measure ground resistance from module ground pin to chassis/battery negative; repair any high-resistance grounds.
  6. Check CAN/LIN bus wiring: measure idle voltages at module connector, verify termination resistance ~60 Ω, and look for shorts to battery or ground. Repair wiring faults.
  7. If power/ground and bus are good, perform a scan-tool software/firmware check and apply any OEM updates/reprogramming per service information.
  8. If the module remains faulty after software reflash and confirming correct power/ground/communications, replace the module. Follow programming/initialization procedures and observe immobilizer/gateway requirements if applicable.
  9. After repair or replacement, clear codes and perform a full functional test and road test to confirm repair. Document findings and final verification data.

Likely causes

  • Poor power/ground to the module (low battery voltage, blown fuse, high-resistance ground)
  • CAN bus wiring fault, missing termination or short to voltage/ground
  • Corroded/loose connector at module
  • Module firmware error requiring reflash
  • Actual internal hardware failure of the module

Fault status

⚠️ Status
Chassis Control Module Internal Fault - internal hardware/software error reported by CCM. Verify module power, ground and bus communications; perform software update before replacing module.
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

C1380 C1381 C1383 C1226 C1234
406

Browse 406 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MITSUBISHI

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