DTC P0113
DTC P0113 : IAT Sensor Circuit High Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the A/T System (2014 2015), or How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016) .
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P0113 IAT Sensor Circuit High Voltage |
DTC (PGM-FI)
- Problem verification
-1. Turn the vehicle to the ON mode.
- 2. Check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit IAT SENSOR (2) More than 4.92 V Do the current condition(s) match the threshold?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the MAF sensor/IAT sensor and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.
- Determine possible failure area (IAT sensor, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
MAF sensor/IAT sensor 5P connector - 3. Connect terminals A and B with a jumper wire.
Terminal A MAF sensor/IAT sensor 5P connector No. 4 (BRN) Terminal B MAF sensor/IAT sensor 5P connector No. 5 (GRY) - 4. Turn the vehicle to the ON mode.
- 5. Check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit IAT SENSOR (2) More than 4.92 V Do the current condition(s) match the threshold?
YES
Go to step 3.
NO
- Determine possible failure area (TA(AFM)/TA line, SG2 line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Remove the jumper wire from the MAF sensor/IAT sensor 5P connector.
- 3. Turn the vehicle to the ON mode.
- 4. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode MAF sensor/IAT sensor 5P connector: disconnected Test circuit TA Test point 1 MAF sensor/IAT sensor 5P connector No. 4 (BRN) Test point 2 Body ground Is there about 5.0 V?
YES
Go to step 4.
NO
Go to step 5.
- Open wire check (SG2 line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS.
- 3. Disconnect the following connector.
- 4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode MAF sensor/IAT sensor 5P connector: disconnected PCM connector B (51P): disconnected Test circuit SG2 Test point 1 MAF sensor/IAT sensor 5P connector No. 5 (GRY) Test point 2 PCM connector B (51P) No. 45 (GRY) Is there continuity?
YES
The SG2 wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM - Refer to: PCM Removal and Installation (2014 2015), or PCM Removal and Installation (2016) .
NO
Repair an open in the SG2 wire between the PCM (B45) and the MAF sensor/IAT sensor.
- Open wire check (TA(AFM)/TA line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS.
- 3. Disconnect the following connector.
- 4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode MAF sensor/IAT sensor 5P connector: disconnected PCM connector C (51P): disconnected Test circuit TA(AFM)/TA Test point 1 MAF sensor/IAT sensor 5P connector No. 4 (BRN) Test point 2 PCM connector C (51P) No. 49 (BRN) Is there continuity?
YES
The TA(AFM)/TA wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM - Refer to: PCM Removal and Installation (2016), or PCM Removal and Installation (2014 2015) .
NO
Repair an open in the TA(AFM)/TA wire between the PCM (C49) and the MAF sensor/IAT sensor.