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P2122, P2123 APP SENSOR EC-419 < DTC/CIRCUIT DIAGNOSIS > [QR25DE] C D E F G H I J K L M A EC N P O Diagnosis Procedure INFOID:0000000009481125 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten two 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 terminal 2 and ground with CONSULT or tester. OK or NG OK >> GO TO 3. NG >> Repair open circuit, short to ground or short to power in harness or connectors. 3. CHECK APP SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check harness continuity between APP sensor terminal 4 and ECM terminal 84. Refer to Wiring Diagram. 4. Also check harness for short to ground and short to power. OK >> GO TO 4. NG >> Repair open circuit, short to ground or short to power in harness or connectors. 4. CHECK APP SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT BBIA0614E BBIA0592E Voltage: Approximately 5V PBIB2608E Continuity should exist. |