DTC P2127-00: App Sensor No.2 Circuit Low Input: Notes
DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P2127:00 |
APP sensor No.2 circuit low input |
| DETECTION CONDITION |
- The PCM monitors the input voltage from APP sensor No.2 when the engine is running. If the input voltage at the PCM terminal 2AS is less than 0.1 V
, the PCM determines that the APP sensor No.2 circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
- The DTC is stored in the PCM memory.
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| FAIL-SAFE FUNCTION |
- Regulates the upper limit of the APP sensor output.
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| POSSIBLE CAUSE |
- APP sensor connector or terminals malfunction
- Short to ground in wiring harness between the following terminals:
- APP sensor terminal F-PCM terminal 2AW
- APP sensor terminal E-PCM terminal 2AS
- PCM connector or terminals malfunction
- APP sensor No.2 signal circuit and ground circuit are shorted to each other
- Open circuit in wiring harness between the following terminals:
- APP sensor terminal F-PCM terminal 2AW
- APP sensor terminal E-PCM terminal 2AS
- APP sensor No.2 malfunction
- PCM malfunction
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CAUTION:
- Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.
RELATED PIDS
| Monitor item (Definition) |
Unit/Condition |
Condition/Specification (Reference) |
| APP1 |
% |
- Accelerator pedal released: approx. 16 %
- Accelerator pedal depressed: approx. 80 %
|
| V |
- Accelerator pedal released: approx. 0.8 V
- Accelerator pedal depressed: approx. 4 V
|
| APP2 |
% |
- Accelerator pedal released: approx. 8 %
- Accelerator pedal depressed: approx. 40 %
|
| V |
- Accelerator pedal released: approx. 0.4 V
- Accelerator pedal depressed: approx. 2 V
|