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DTC P0642, P0643 SENSOR POWER SUPPLY EC-253 [YD (WITH EURO-OBD)] C D E F G H I J K L M A EC Diagnostic Procedure EBS013Q1 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten engine ground screws. 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 2. Turn ignition switch ON. 3. Check voltage between APP sensor terminal 2 and ground with OK or NG OK >> GO TO 4. NG >> GO TO 3. 3. DETECT MALFUNCTIONING PART Check the following. ● Harness connectors M77, F109 ● Harness for open or short between ECM and APP sensor >> Repair open circuit or short to ground or short to power in harness or connectors. 4. CHECK APP SENSOR Refer to EC-254, "Component Inspection" . OK or NG OK >> GO TO 5. NG >> Replace accelerator pedal assembly. MBIB0915E MBIB0903E Voltage: Approximately 5.3V PBIB0811E |