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U140F-IMPLAUSIBLE ENGINE VARIANT DATA For a complete wiring diagram Refer to Section 8W. Theory of Operation During the initial ignition on, the Transmission Control Module (TCM) receives the calibrated data from the Engine/ • When Monitored: • Set Condition: Possible Causes FCM/TIPM DTCS PRESENT WRONG ENGINE CONTROLLER SOFTWARE WRONG TRANSMISSION CONTROLLER SOFTWARE ENGINE CONTROL MODULE TRANSMISSION CONTROL MODULE Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - Diagnostic Test 1. CHECK IF THE DTC IS ACTIVE With the scan tool, read Transmission DTCs. Is the status Active for this DTC or is the STARTS SINCE SET counter 2 or less? Yes >> Go To 2 No >> Go To 5 2. CHECK FOR FCM/TIPM CAN BUS DTCS With the scan tool, read FCM/TIPM DTCs. Are there any FCM/TIPM CAN BUS DTCs present? Yes >> (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) cate- gory and perform the appropriate symptom(s). Perform CVT VERIFICATION TEST. (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - CVT - No >> Go To 3 PM AUTOMATIC - CVT-ELECTRICAL DIAGNOSTICS 21 - 271 |