U1503–IMPLAUSIBLE MESSAGE DATA LENGTH RECEIVED FROM TIPMFor 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 Test1. CHECK IF TIPM CAN BUS DTCs ARE PRESENTWith 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).