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P2138 APP SENSOR EC-385 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE] C D E F G H I J K L M A EC N P O Diagnosis Procedure INFOID:0000000007358353 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten three ground screws on the body. Refer to OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 2. CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT 1. Disconnect accelerator pedal position (APP) sensor harness connector. 2. Turn ignition switch ON. 3. Check voltage between APP sensor terminals 2 and ground with CONSULT or tester. OK or NG OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 3. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I Check voltage between APP sensor terminal 1 and ground with CONSULT or tester. 1. OK or NG OK >> GO TO 8. NG >> GO TO 4. 4. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II 1. Turn ignition switch OFF. BBIA0539E Voltage: Approximately 5V BBIA0556E PBIB2608E Voltage: Approximately 5V PBIB2611E August 2012 2012 Pathfinder |