On Board Diagnosis Logic: Notes

This self-diagnosis has the one trip detection logic .

NOTE: If DTC P2138 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to DTC P0643 SENSOR POWER SUPPLY .

DTC DETECTING CONDITION CHART

DTC No.	Trouble diagnosis name	DTC detecting condition	Possible cause
P2138 2138	Accelerator pedal position sensor circuit range/performance	Rationally incorrect voltage is sent to ECM compared with the signals from APP sensor 1 and APP sensor 2.	Harness or connector (The APP sensor 1 and 2 circuit is open or shorted.) Harness or connectors APP sensor 2 circuit is open or shorted.) CKP sensor (POS) circuit is open or shorted.] CMP sensor (PHASE) (bank 2) circuit is shorted.] EVT control position sensor (bank 2) circuit is shorted.] EVAP control system pressure sensor circuit is shorted.) Refrigerant pressure sensor circuit is shorted.) Accelerator pedal position sensor (APP sensor 1 and 2) Crankshaft position sensor (POS) Camshaft position sensor (PHASE) (bank 2) Exhaust valve timing control position sensor (bank 2) EVAP control system pressure sensor Refrigerant pressure sensor