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

WARNING: This page is about a different car, the 2000 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

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.

NOTE: If DTCs P0110, P0115, P0120, P0440, P0446, P0450 and P0451 are output together, inspect ECM E2 circuit (sensor ground) between ECM and splice I8. Repair as necessary. See WIRING DIAGRAMS article.

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