U1503–IMPLAUSIBLE MESSAGE DATA LENGTH RECEIVED FROM TIPM

For a complete wiring diagram Refer to Section 8W

When Monitored:
Continuously with the ignition on.
Set Condition:
When the Anti-Lock Brake Module detects an incorrect CAN message from the Totally Integrated Power Module (TIPM).

Possible Causes

TIPM CAN BUS DTCS

ANTI-LOCK BRAKE MODULE

Diagnostic Test

1. CHECK IF TIPM CAN BUS DTCs ARE PRESENT

With the scan tool, read TIPM DTCs.

Are there any TIPM CAN BUS DTCs present?

Yes

Refer to 8-ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING and diagnose the appropriate symptom.

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

No

Replace the Anti-Lock Brakes Module in accordance with the Service Information.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).