U1505

U1505-IMPLAUSIBLE MESSAGE DATA LENGTH RECEIVED FROM FDCM

For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Continuously with the ignition on.

- Set Condition:
When the Anti-Lock Brake Module detects an incorrect CAN message from the FCM.





Diagnostic Test

1. CHECK IF FCM CAN BUS DTCs ARE PRESENT
With the scan tool, read FCM DTCs.
Are there any FCM CAN BUS DTCs present?

Yes

- Diagnose and repair the DTCs.
- Perform ABS VERIFICATION TEST. ABS Verification Test

No

- Replace the Anti-Lock Brakes Module.
- Perform ABS VERIFICATION TEST. ABS Verification Test