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EC-886 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] P2127, P2128 APP SENSOR OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 2. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I 1. Disconnect accelerator pedal position (APP) sensor (1) harness connector. 2. Turn ignition switch ON. 3. Check voltage between APP sensor terminal 1 and ground with CONSULT-III or tester. OK or NG OK >> GO TO 7. NG >> GO TO 3. 3. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check harness continuity between APP sensor terminal 1 and ECM terminal 91. Refer to Wiring Diagram. OK or NG OK >> GO TO 4. NG >> Repair open circuit. 4. CHECK SENSOR POWER SUPPLY CIRCUIT Check harness for short to power and short to ground, between the following terminals BBIA0539E AWBIA0079ZZ Voltage: Approximately 5 V PBIB2611E Continuity should exist. ECM terminal Sensor terminal Reference Wiring Diagram 47 Electric throttle control actuator terminal 2 91 APP sensor terminal 1 2011 Pathfinder |