DTC P0112: Inspection
IAT Sensor Inspection
Since there is no direct method to test the component itself, troubleshooting is performed on the related components.
Test Procedure
Unit output voltage inspection
- Preparation
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MAF sensor/IAT sensor connector (4P): disconnected
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- Procedure
- Turn the vehicle to the ON mode.
- Confirm the HDS [IAT Sensor (1) Voltage].
- Normal Conditions
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HDS [IAT Sensor (1) Voltage] value is more than 0.08 V .
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Results
- If it is normal, there is a problem with the MAF sensor/IAT sensor.
- If it is abnormal, there is a problem with other related components.
TA Shorted Wire Inspection
Before disconnecting the PCM connector, jump the SCS line with the HDS, and wait more than 1 minute.
Test Procedure
- Preparation
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MAF sensor/IAT sensor connector (4P): disconnected
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PCM connector E (80P): disconnected
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- Procedure
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Perform the inspection according to the following chart.
Refer to the Open/Shorted Wire Inspection Description for the method to inspect the shorted circuit below, then start to inspect according to circumstances.
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| (Disconnected) MAF sensor/IAT sensor connector (4P) female terminals | ||||
| IG Mode |
|
Normal Conditions | ||
| TA shorted to ground inspection | OFF | There is more than 1 MOhm |
Results
- If abnormal, there is a problem in the circuit.
PCM Inspection
Test Procedure
- If the other inspection item(s) indicated a normal condition, then it is determined that the remaining PCM is the cause.
Results
- There is a problem with the PCM.