DTC P0123: Notes
DTC P0123 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0123 |
TP sensor No. 1 circuit high input |
| DETECTION CONDITION |
- If the PCM detects that the TP sensor No. 1 voltage is above 4.9 V
after ignition switch to the ON position, PCM determines that TP circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
- FREEZE FRAME DATA is available.
- DTCs are stored in the PCM memory.
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| POSSIBLE CAUSE |
- TP sensor malfunction
- Connector or terminal malfunction
- Open circuit between throttle body terminal B and PCM terminal 3P
- Open circuit between throttle body terminal D and PCM terminal 3Q
- Short to the constant voltage supply circuit between throttle body terminal A and PCM terminal 3M
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 Courtesy of MAZDA MOTORS CORP.
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