DTC P007D-00: Boost Air Temperature Sensor Circuit High Input: Notes
DTC P007D:00 DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P007D:00 |
Boost air temperature sensor circuit high input |
| DETECTION CONDITION |
- The PCM monitors the boost air temperature sensor signal. If the PCM detects that the boost air temperature sensor voltage at the PCM terminal 2U is above 4.96 V for 5 s, the PCM determines that the boost air temperature sensor 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 |
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| POSSIBLE CAUSE |
- Boost pressure sensor/boost air temperature sensor connector or terminals malfunction
- PCM connector or terminals malfunction
- Boost air temperature sensor malfunction
- Short to power supply in wiring harness between boost pressure sensor/boost air temperature sensor terminal B and PCM terminal 2U
- Open circuit in wiring harness between the following terminals:
- Boost pressure sensor/boost air temperature sensor terminal B-PCM terminal 2U
- Boost pressure sensor/boost air temperature sensor terminal A-PCM terminal 2J
- PCM malfunction
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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.