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DTC P1731 A/T 1ST ENGINE BRAKING AT-169 D E F G H I J K L M A B AT 3. CHECK TERMINAL CORD ASSEMBLY 1. Remove oil pan. Refer to AT-289, "Control Valve Assembly" 2. Disconnect A/T unit assembly harness connector and control valve assembly harness connector. 3. Check continuity between A/T unit assembly harness connector 4. If OK, check harness for short to ground and short to power. 5. Reinstall any part removed. OK or NG OK >> Replace the control valve assembly. Refer to AT-289, "Control Valve Assembly" . NG >> Repair open circuit or short to ground or short to power in harness or connectors. 4. CHECK DTC Perform “DTC Confirmation Procedure”. Refer to AT-166, "DTC Confirmation Procedure" . OK or NG OK >> INSPECTION END NG >> GO TO 5. 5. PERFORM TCM INSPECTION 1. Perform TCM input/output signal inspection. 2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK >> INSPECTION END NG >> Repair or replace damaged parts. Item Connector No. Terminal No. (Wire color) Continuity A/T unit assembly F26 2 (R) Yes Control valve assem- F302 10 (R) A/T unit assembly F26 5 (L) Yes Control valve assem- F302 13 (L) A/T unit assembly F27 2 (B/R) Yes Control valve assem- F301 4 (B/R) SCIA3107E |