DTC P0112: Notes
DTC P0112 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES
| DTC P0112 |
IAT sensor circuit low input |
| DETECTION CONDITION |
- The PCM monitors the IAT sensor signal. If the PCM detects the IAT sensor voltage below 0.16 V for 5s
, the PCM determines that the IAT sensor circuit has malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA (Mode 2/Mode12) is available.
- DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- Poor connection at MAF/IAT sensor or PCM connector
- IAT sensor malfunction
- Short each wiring harness IAT signal circuit and IAT ground circuit
- Short to ground in wiring harness between MAF/IAT sensor terminal D and PCM terminal 1AT
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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