DTC P0123-00: TP Sensor No. 1 Circuit High Input: Outline
DTC P0123:00 (PCM, VINs 7, L, M) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
TP sensor No. 1 circuit high input |
| Detection condition |
- If the PCM detects that the TP sensor No. 1 voltage at the PCM terminal 1O is above 4.9 V, the PCM determines that the TP sensor No. 1 circuit has a malfunction.
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| Fail-safe |
- Restricts the upper limit of the engine speed.
- PCM restricts engine torque.
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| Possible cause |
- Throttle body connector or terminals malfunction
- PCM connector or terminals malfunction
- TP sensor No. 1 malfunction
- Short to power supply in TP sensor No. 1 signal circuit
- Open circuit in any of the following TP sensor No. 1 circuits.
- Power supply circuit
- Signal circuit
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 Courtesy of MAZDA MOTORS CORP.
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