DTC P0123: Notes
DETECTION CONDITION AND POSSIBLE CAUSE (DTC P0123)
| DTC P0123 |
TP sensor No.1 circuit high input |
| DETECTION CONDITION |
- If the PCM detects the TP sensor No.1 voltage is to be above 4.9 V
after ignition switch to the ON position, PCM determines that TP sensor No.1 circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- The MIL illuminates if the PCM detects the above malfunction condition during first drive cycles.
- PENDING CODE is available if the PCM detects the above malfunction condition.
- FREEZE FRAME DATA is available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- TP sensor No.1 malfunction
- Connector or terminal malfunction
- Open circuit in wiring harness between throttle body terminal C and PCM terminal 2AP
- Open circuit in wiring harness between throttle body terminal F and PCM terminal 2AK
- Short to constant voltage supply circuit in wiring harness between throttle body terminal F and PCM terminal 2AK
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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