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U0141–LOST COMMUNICATION WITH FRONT CONTROL MODULE (CONTINUED) 3. VERIFY THAT THE FCM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the FCM is active on the bus. Is the FCM active on the bus? Yes >> Go To 4 No >> Refer to the Table of Contents located in this section for a no response test procedure. Perform BODY VERIFICATION TEST – VER 1. 4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS With the scan tool, select Network Diagnostics. Is there more than one module with active DTCs “Logged Against” the FCM? Yes >> Replace/update the Front Control Module in accordance with the service information. Perform BODY VERIFICATION TEST – VER 1. No >> Replace/update the module that set this DTC in accordance with the service information Perform BODY VERIFICATION TEST – VER 1. 5 - 386 BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS WK |