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Symptom: SLA CAN MESSAGE INCORRECT POSSIBLE CAUSES SHIFT LEVER ASSEMBLY DTCS PRESENT PCM/ECM - ENGINE TORQUE MESSAGE INCORRECT TCM - TORQUE MESSAGE INCORRECT TEST ACTION APPLICABILITY 1 NOTE: Low fluid level can be the cause of many transmission problems. If t, read the engine DTCs. Check and repair all engine DTCs prior to performing transmission symptom diagnostics. t, read and record all Transmission DTCs. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal All Continue 2 Ignition on, engine not running. t, read Engine DTCs. Are there any performance or bus related Engine DTCs present? All Yes → Refer to the Shift Lever category and perform the appropriate symptom. No → Go To 3 3 Replace and program the ECM per the Service Information. t, erase Transmission DTCs. Drive the vehicle performing multiple aggressive upshifts and downshifts. t, read Transmission DTCs. Did the DTC, ENGINE TORQUE MESSAGE INCORRECT, reset? All Yes → Go To 4 No → Test Complete Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. 4 If there are no possible causes remaining, view repair. All Repair Replace the Transmission Control Module. 102 TRANSMISSION - NAG1 |