DTC P0110: Intake Air Temperature (IAT) Sensor Circuit: Notes

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

CAUTION: If ECM replacement is instructed in following tests, 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 and P0120 are output together, inspect ECM E2 circuit (sensor ground) between terminal No. 9 (Brown wire) at ECM harness connector E6 and splice I4. Repair as necessary. See WIRING DIAGRAMS article.

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