DTC P0120: Throttle Position Sensor Circuit: Notes

CAUTION: If Engine Control Module (ECM) replacement is instructed in following test, always ensure ECM electrical connectors and ground circuits are okay. If either are defective, repair and repeat testing to confirm ECM malfunction. If ECM is replaced, ECM must be programmed with proper ignition key code for engine immobilizer system. For programming procedures, see COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION, or appropriate ENGINE IMMOBILIZER SYSTEMS article in ACCESSORIES & EQUIPMENT.

NOTE: If DTCs P0110, P0115, P0120, P0450 and P1120 are output simultaneously, the E2 sensor ground circuit at terminal No. 18 (Brown/White wire) at ECM electrical connector E6 may be open. See WIRING DIAGRAMS article. For ECM electrical connector terminal identification, see Figure. It may be necessary to check Brown/White wire between splice E10 and terminal No. 18 at ECM electrical connector E6. See Figure.