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TM-80 < COMPONENT DIAGNOSIS > P1721 VEHICLE SPEED SIGNAL OK or NG OK >> GO TO 4. NG >> Repair or replace damaged parts. 4. CHECK DTC Perform “DTC Confirmation Procedure”. • Refer to TM-79, "DTC Confirmation Procedure" OK or NG OK >> INSPECTION END NG >> GO TO 5. 5. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT Check TCM power supply and ground circuit. Refer to OK or NG OK >> GO TO 6. NG >> Repair or replace damaged parts. 6. DETECT MALFUNCTIONING ITEM Check the following. • The A/T assembly harness connector pin terminals for damage or loose connection with harness connector. OK >> Replace the control valve with TCM. Refer to TM-174, "Removal and Installation" NG >> Repair or replace damaged parts. 2010 Pathfinder |