DTC P0120: Throttle Position (TP) Sensor Circuit: Notes

CAUTION: If ECM replacement is instructed in following testing, always ensure ECM connectors and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. If ECM is replaced on models equipped with engine immobilizer system, ECM must be programmed with proper ignition key code. For programming procedures, see COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION or appropriate ENGINE IMMOBILIZER SYSTEMS article in ACCESSORIES & EQUIPMENT.

NOTE: If DTCs P0105, P0106, P0110, P0115 and P0120 are output together, inspect ECM E2 circuit (sensor ground). Repair as necessary. See WIRING DIAGRAMS article.

NOTE: For component location, see appropriate illustration in THEORY & OPERATION article.