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3. CHECK TRANSMISSION FLUID LEVEL Check the transmission fluid level per the Service Information. (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTO- Is the fluid level correct? Yes >> Go To 4 No >> Properly adjust the fluid level per the Service Information. (Refer to 21 - TRANSMISSION/TRANSAXLE/ AUTOMATIC - NAG1/FILTER - STANDARD PROCEDURE) Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/ 4. CHECK IF DTC IS CURRENT With the scan tool, record the Environmental Data and erase Transmission DTCs. NOTE: If the TCM detects and stores a DTC, the TCM also stores the vehicles operating conditions under Did the DTC P0731-GEAR RATIO ERROR IN 1ST reset? Yes >> Repair internal transmission as necessary per the Service Information. (Refer to 21 - TRANSMISSION/ TRANSAXLE/AUTOMATIC - NAG1 - REMOVAL) Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/ No >> Go To 5 5. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wiring and connectors while checking for any possible open or shorted circuits. Check for any Service Information Tune-ups or Technical Service Bulletins that may apply. Were there any problems found? Yes >> Repair as necessary. Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/ No >> Test Complete. 21 - 50 AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS LX |