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P0735-GEAR RATIO ERROR IN 5TH For the Transmission circuit diagram (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - NAG1 - SCHE- For a complete wiring diagram Refer to Section 8W Theory of Operation The Transmission Control Module (TCM) constantly calculates the transmission ratio based on the input speed sen- • When Monitored: • Set Condition: Possible Causes LOW TRANSMISSION FLUID OTHER TRANSMISSION DTCS PRESENT INTERNAL TRANSMISSION FAILURE Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS- Diagnostic Test 1. CHECK FOR OTHER TRANSMISSION DTCS With the scan tool, check transmission DTCS Are there any solenoid and/or solenoid supply voltage DTCs present? Yes >> Refer to 21 - AUTOMATIC TRANSMISSION - AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS category and perform the appropriate symptom. No >> Go To 2 2. CHECK TRANSMISSION FLUID LEVEL Check the transmission fluid level per the Service Information. Refer to 21- AUTOMATIC TRANSMISSION-AUTO- Is the fluid level correct? Yes >> Go To 3 No >> Properly adjust the fluid level per the Service Information. Refer to 21- AUTOMATIC TRANSMISSION - AUTOMATIC TRANSMISSION NAG1/SERVICE INFORMATION for the appropriate service procedure. Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. 21 - 514 AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS WK |