DTC P2128-00; App Sensor No. 2 Circuit High Input: Notes
DTC DETECTION DESCRIPTION
| DTC P2128:00 |
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 2AS is more than 4.9 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/Snapshot data is available.
- DTC is stored in the PCM memory.
|
| FAIL-SAFE FUNCTION |
- Regulates the upper limit of the APP sensor output.
|
| POSSIBLE CAUSE |
- APP sensor connector or terminals malfunction
- PCM connector or terminals malfunction
- APP sensor No. 2 malfunction
- Short to power supply in wiring harness between APP sensor terminal E and PCM terminal 2AS
- Open circuit in wiring harness between APP sensor terminal D and PCM terminal 2AT
- PCM malfunction
|
|
|
CAUTION:
- Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.
PARTS DESCRIPTION
| Item |
Definition |
Unit |
Condition/Specification |
| APP1 |
Accelerator pedal opening angle (absolute value) input from APP sensor No. 1 |
% |
- Accelerator pedal released: Approx. 15%
- Accelerator pedal fully depressed: Approx. 90.58%
|
| APP sensor No. 1 voltage |
V |
- Accelerator pedal released: Approx. 0.75 V
- Accelerator pedal fully depressed: Approx. 4.52 V
|
| APP2 |
Accelerator pedal opening angle (absolute value) input from APP sensor No. 2 |
% |
- Accelerator pedal released: Approx. 7.45%
- Accelerator pedal fully depressed: Approx. 45.49%
|
| APP sensor No. 2 voltage |
V |
- Accelerator pedal released: Approx. 0.38 V
- Accelerator pedal fully depressed: Approx. 2.26 V
|