Diagnostic Test

CHECK FOR AN ACTIVE DTC 

1. Turn the ignition on.
2. With the scan tool, read active DTCs.

   Is this DTC active?

   Yes 

   • Refer to DTC INDEX and perform the U0141-Lost Communication with IPM (BCM) diagnostic procedure.

   No 

   • Refer to STORED LOST COMMUNICATION DTCS and perform the Stored Lost Communication DTCs diagnostic procedure.