P0113
DTC P0113: IAT Sensor Circuit High Voltage1. Turn the ignition switch ON (II).
2. Check the MIL and the D indicator.
(This step is for CVT models only. If the vehicle you are diagnosing is an M/T model, go to step 3.)
Is the D indicator the only one on?
YES - Go to step 19.
NO - Go to step 3.
3. Check the IAT SENSOR in the DATA LIST with the HDS.
Is -4 °F (-20 °C) or less, or 5 V indicated?
YES - Go to step 4.
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the IAT sensor and at the ECM.
4. Turn the ignition switch OFF.
5. Disconnect the IAT sensor 2P connector.
6. Connect IAT sensor 2P connector terminals No.1 and No.2 with a jumper wire.
7. Turn the ignition switch ON (II).
8. Check the IAT SENSOR in the DATA LIST with the HDS.
Is -4 °F (-20 °C) or less, or 5 V indicated?
YES - Go to step 9.
NO - Replace the IAT sensor.
9. Turn the ignition switch OFF.
10. Remove the jumper wire.
11. Connect ECM connector terminals A10 and B17 with a jumper wire.
12. Turn the ignition switch ON (II)
13. Check the IAT SENSOR in the DATA LIST with the HDS.
Is -4 °F (-2O °C) or less, or 5 V indicated?
YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM.
NO - Go to step 14.
14. Turn the ignition switch OFF.
15. Wait for 1 minute. If the radiator fan is running, wait for 1 minute after it stops.
16. Disconnect ECM connector A (31P).
17. Connect IAT sensor 2P connector terminal No.1 to body ground with a jumper wire.
18. Check for continuity between ECM connector terminal A10 and body ground.
Is there continuity?
YES - Repair open in the wire between the ECM (B17) and the IAT sensor.
NO - Repair open in the wire between ECM (A10) and the IAT sensor.
19. Turn the ignition switch OFF.
20. Disconnect the IAT sensor 2P connector.
21. Disconnect TCM connector C (17P).
22. Connect IAT sensor 2P connector terminal No.2 to body ground with a jumper wire.
23. Check for continuity between TCM connector terminal C8 and body ground.
Is there continuity?
YES - Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
NO - Repair open in the wire between TCM (C8) and the IAT sensor.