DTC P0111: Intake Air Temperature (IAT) Circuit Range/Performance Problem
WARNING: This page is about a different car, the 1999 Suzuki Vitara. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Disconnect IAT sensor harness connector. Check for poor connections and repair as necessary. If connections are okay, check operation of IAT sensor. See SYSTEM & COMPONENT TESTINGS article. Replace if necessary. If IAT sensor is okay, go to next step.
- Disconnect PCM harness connectors. Check for poor connections and repair as necessary. If connections are okay, check Light Blue and Black/White wires for excessive resistance between IAT sensor and PCM. Repair as necessary. If circuits are okay, replace PCM and retest system.