Accelerator Pedal Position Sensor: Testing and Inspection

ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION [LF, L3]

NOTE:
- Before performing the following inspection, make sure to follow the troubleshooting flowchart. Foreword

1. Connect the M-MDS to the DLC-2.






2. Turn the ignition switch to ON position.

3. Select APP1 and APP2 PID on the M-MDS.

4. Verify that the APP1 and APP2 PID is within the specification when the accelerator pedal not depressed. Component Tests and General Diagnostics

Circuit Open/Short Inspection

1. Disconnect the PCM connectors.

2. Disconnect the APP sensor connector.

3. Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)
















Open circuit

- If there is no continuity in the following wiring harnesses, there is an open circuit. Repair or replace the wiring harness.

- APP sensor terminal A and PCM terminal 1AL*1, *2, 1AW*3
- APP sensor terminal B and PCM terminal 1AP *1, *2, 1Y*3
- APP sensor terminal C and PCM terminal 1AS*1, 1AV*2, 1AA*3
- APP sensor terminal D and PCM terminal body ground
- APP sensor terminal E and PCM terminal 1AC*1, 1AO*2, 1AL*3
- APP sensor terminal F and main relay terminal A

Short circuit

- If there is continuity in the following wiring harnesses, there is a short circuit. Repair or replace the wiring harness.

- APP sensor terminal A and body ground
- APP sensor terminal B and body ground
- APP sensor terminal B and power supply
- APP sensor terminal C and power supply
- APP sensor terminal D and power supply
- APP sensor terminal E and body ground
- APP sensor terminal E and power supply
- APP sensor terminal F and power supply

*1
California emission regulation applicable model
*2
Except for California emission regulation applicable model with LF MTX, L3
*3
Except for California emission regulation applicable model with LF ATX