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P1731-INCORRECT GEAR ENGAGED 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 TCM compares the calculated gear with the gear the transmission has actually engaged. The actual gear is • When Monitored: • Set Condition: Possible Causes TRANSMISSION SOLENOID DTCS PRESENT ABS DTCS PRESENT INTERNAL TRANSMISSION TRANSMISSION CONTROL MODULE Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS- Diagnostic Test 1. CHECK IF TRANSMISSION SOLENOID DTCS ARE PRESENT With the scan tool, check for other transmission DTCs. Are there any Transmission Solenoid 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 IF ABS DTCS ARE PRESENT With the scan tool, check for ABS DTCs. Are there any ABS DTCs present? Yes >> Refer to 5 - BRAKES - ABS ELECTRICAL DIAGNOSTICS category and perform the appropriate symp- tom. No >> Go To 3 21 - 590 AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS WK |