What this code means

The Controller Area Network (CAN) communication link between the Engine Control Module and the ABS module has a fault. The modules cannot exchange data properly.

Symptoms

• Check Engine Light
• ABS warning light
• Traction control disabled
• Possible limp mode

Common causes

• Damaged CAN bus wiring
• Faulty ABS module
• Faulty PCM
• Corroded CAN connector
• CAN bus termination issue

Diagnostic steps

1. Check for ABS DTCs as well
2. Inspect CAN bus wiring for damage
3. Test CAN bus resistance (should be ~60 ohms between CAN-H and CAN-L)
4. Check connectors at PCM and ABS module

Repair notes

Repair CAN bus wiring. Replace faulty module if communication is lost.

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