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TEST ACTION APPLICABILITY 3 Determine if there are any Transmission Mechanical problems present. All Yes → Refer to the Service Information for the proper repair procedure. Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. No → Go To 4 4 NOTE: The Engine and Transmission must not have mechanical problems t, erase Transmission DTCs. Road test the Vehicle. t, read Transmission DTCs. Does the DTC, ENGINE OVERSPEED, reset? All Yes → Go To 5 No → Replacing the ECM has corrected the problem. Perform the Powertrain Verification test. 5 If there are no possible causes remaining, view repair. All Repair Replace the TCM. 61 TRANSMISSION - NAG1 ENGINE OVERSPEED — Continued |