U0429-IMPLAUSIBLE DATA RECEIVED FROM SCM

For a complete wiring diagram Refer to Section 8W


  • When Monitored:

    Continuously while the system is active.

  • Set Condition:

    An error message has been received over the bus from the Steering Control Module (SCM).


Possible Causes
 
INTERMITTENT DTC
 
CAN BUS OPEN OR SHORTED CONDITION
 
STEERING CONTROL MODULE (SCM)
 
ENGINE CONTROL MODULE (ECM)
 


Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)



Diagnostic Test

1.ACTIVE DTC

NOTE: Diagnose all CAN B and C communication DTCs before continuing.





Is the status Active for this DTC?

Yes
  • Go To 2


No

2.SCM COMMUNICATION RELATED DTC'S IN OTHER MODULES



Are there any SCM communication related DTCs in other modules on the CAN Bus at this time?

Yes


No