DTC P0113-00; IAT Sensor No. 1 Circuit High Input: Notes
DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0113:00 |
IAT sensor No. 1 circuit high input |
| DETECTION CONDITION |
- The PCM monitors the IAT sensor No. 1 signal. If the PCM detects that the IAT sensor No. 1 voltage at the PCM terminal 2AX is above 4.62 V for 5 s, the PCM determines that the IAT sensor No. 1 circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA/Snapshot data is available.
- DTC is stored in the PCM memory.
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| FAIL-SAFE FUNCTION |
- Fixes the intake air temperature (for engine control) at 20 °C {68 °F}.
- Inhibits the fuel cut control during shift change.
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| POSSIBLE CAUSE |
- MAF sensor/IAT sensor No. 1 connector or terminals malfunction
- PCM connector or terminals malfunction
- IAT sensor No. 1 malfunction
- Short to power supply in wiring harness between MAF sensor/IAT sensor No. 1 terminal A and PCM terminal 2AX
- Open circuit in wiring harness between the following terminals:
- MAF sensor/IAT sensor No. 1 terminal A-PCM terminal 2AX
- MAF sensor/IAT sensor No. 1 terminal B-PCM terminal 2AY
- PCM malfunction
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CAUTION:
- Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.
Related PIDs
| Item (definition) |
Unit/Condition |
Definition |
Condition/Specification (Reference) |
| IAT |
°C, °F |
Intake air temperature (No. 1) input from IAT sensor No. 1 |
|
| V |
IAT sensor No. 1 voltage |
- IAT is 20 °C {68 °F}: Approx. 2.70 V
- IAT is 40 °C {104 °F}: Approx. 1.80 V
- IAT is 60 °C {140 °F}: Approx. 1.20 V
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