DTC P0123:00: Notes
DTC P0123:00 (L3 WITH TC) DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0123:00 |
TP sensor NO. 1 circuit high input |
| DETECTION CONDITION |
- If the PCM detects that the TP sensor NO. 1 voltage is above 4.85 V
after ignition switch to the ON position, the PCM determines that TP sensor NO. 1 circuit has a 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)/Snapshot data is available.
- DTCs are stored in the PCM memory.
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| POSSIBLE CAUSE |
- Throttle body connector or terminals malfunction
- PCM connector or terminals malfunction
- Short to power supply in wiring harness between throttle body terminal A and PCM terminal 2AK
- TP sensor NO. 1 power supply circuit and signal circuit are shorted to each other
- Open circuit in wiring harness between the following terminals:
- Throttle body terminal A-PCM terminal 2AK
- Throttle body terminal D-PCM terminal 2AJ
- TP sensor NO. 1 malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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