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EC-478 < DTC/CIRCUIT DIAGNOSIS > [VK56VD] P2138 APP SENSOR P2138 APP SENSOR DTC Logic INFOID:0000000006217981 DTC DETECTION LOGIC NOTE: DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Turn ignition switch ON. 3. Turn ignition switch OFF and wait at least 10 seconds. TESTING CONDITION: >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE 1. Start engine and let it idle for 1 second. 2. Check DTC. Is DTC detected? YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000006217982 1. CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT 1. Disconnect accelerator pedal position (APP) sensor harness connector. 2. Turn ignition switch ON. 3. Check the voltage between APP sensor harness connector and ground. Is the inspection result normal? DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause P2138 APP SENSOR Rationally incorrect voltage is • Harness or connectors (APP sensor 1 or 2 circuit is open or shorted.) • Accelerator pedal position sensor (APP sensor 1 or 2) APP sensor Ground Voltage (V) Connector Terminal E110 (Without ICC) 2 Ground Approx. 5 E67 (With ICC) 12 |