DTC P2128-00: App Sensor No. 2 Circuit High Input: Outline
DTC P2128:00 (PCM, VINs 7, L, M) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
APP sensor No. 2 circuit high input |
| Detection condition |
- The PCM monitors the input voltage from APP sensor No. 2. If the input voltage at the PCM terminal 2BB is more than 4.9 V, the PCM determines that the APP sensor No. 2 circuit has a malfunction.
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| Fail-safe |
- Regulates the upper limit of the APP sensor output.
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| Possible cause |
- APP sensor connector or terminals malfunction
- PCM connector or terminals malfunction
- APP sensor No. 2 malfunction
- Short to power supply in APP sensor No. 2 signal circuit
- Open circuit in APP sensor No. 2 ground circuit
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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