P0113
DTC P0113: IAT Sensor Circuit High Voltage1. Turn the ignition switch ON (II).
2. Check the IAT with a scan tool or the HDS.
Is - 4 °F (-20 °C) or less or 5 V indicated?
YES - Go to step 3.
NO - Intermitent failure, system is OK at this time. Check for poor connections or loose terminals at the IAT sensor and the ECM.
3. Disconnect the IAT sensor 2P connector.
4. Connect IAT sensor 2P connector terminals No. 1 and No. 2 with a jumper wire.
5. Check the IAT with a scan tool or the HDS.
Is - 4 °F (-20 °C) or less or 5 V indicated?
YES - Go to step 6.
NO - Replace the IAT sensor.
6. Turn the ignition switch OFF.
7. Connect ECM connector terminals C18 and C25 with a jumper wire.
8. Turn the ignition switch ON (II).
9. Check the IAT with a scan tool or the HDS.
Is - 4 °F (-20 °C) or less or 5 V indicated?
YES - Substitute a known-good ECM and recheck. If normal IAT is indicated, replace the original ECM.
NO - Repair open in the wire between the ECM (C18, C25) and the IAT sensor.