DTC P0123: Notes
DTC P0123 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES
| DTC P0123 |
TP sensor No. 1 circuit high input |
| DETECTION CONDITION |
- If the PCM detects the TP sensor voltage is above 4.85 V
while the engine is running, the PCM determines that the TP 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 |
- TP sensor malfunction
- Connector or terminal malfunction
- Open circuit in wiring harness between TP sensor terminal D and PCM terminal 2AP
- Short to power supply circuit in wiring harness between TP sensor terminal A and PCM terminal 2AK
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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