DTC P0113-00: IAT Sensor No. 1 Circuit High Input: Notes
DTC P0113:00 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 2U 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 2U
- Open circuit in wiring harness between the following terminals:
- MAF sensor/IAT sensor No. 1 terminal A-PCM terminal 2U
- MAF sensor/IAT sensor No. 1 terminal B-PCM terminal 2AY
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 Courtesy of MAZDA MOTORS CORP.
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CAUTION:
- Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.