DTC P0122 [LF]: Notes
DTC P0122 (LF) DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0122 |
TP sensor No. 1 circuit low input |
| DETECTION CONDITION |
- If the PCM detects that the TP sensor No. 1 voltage is below 0.1 V
while the engine is running, the PCM determines that the 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 conditions during first drive cycle.
- FREEZE FRAME DATA (Mode 2/Mode 12) is available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- Throttle body connector or terminals malfunction
- TP sensor No. 1 malfunction
- Short to ground in wiring harness between throttle body terminal E and PCM terminal 2AO
- Short to ground in wiring harness between throttle body terminal F and PCM terminal 2AK
- PCM connector or terminals malfunction
- TP sensor No. 1 signal circuit and ground circuit are shorted to each other
- Open circuit in wiring harness between throttle body terminal E and PCM terminal 2AO
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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