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Accelerator Pedal Position Sensor: Testing and Inspection

ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION

NOTE: Perform the following inspection only when directed.

Voltage Inspection

1. Turn the ignition key to ON position (Engine OFF).
2. Verify that the PCM terminal 42*1, 2A*2 and 43*1, 3D*2 change smoothly while throttle valve is gradually opened.
- If as verified, go to next step.
- If not as verified, perform the "Circuit Open/Short Inspection".
- If there is no open or short circuit, replace the throttle body.

3. Verify that the PCM terminal 42*1, 2A*2 and 43*1, 3D*2 voltages are as shown in the table.




California emission regulation applicable ATX Model




Except for California emission regulation applicable ATX Model




- If voltage is not as in the table, perform the "Circuit Open/Short Inspection".
- If there is no open or short circuit, replace accelerator pedal.

Circuit Open/Short Inspection




1. Disconnect the PCM connector.
2. Inspect the following wiring harnesses for open or short circuit. (Continuity check)

Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- APP sensor terminal A and PCM terminal 8*1, 2K*2
- APP sensor terminal B and PCM terminal 20*1,2H*2
- APP sensor terminal C and PCM terminal 42*1,2A*2
- APP sensor terminal D and PCM terminal 7*1, 3G*2
- APP sensor terminal E and PCM terminal 17*1, 3A*2
- APP sensor terminal F and PCM terminal 43*1, 3D*2

Short circuit
- If there is continuity, there is a short circuit. Repair or replace the wiring harness.
- APP sensor terminal A and power supply
- APP sensor terminal A and body GND
- APP sensor terminal B and power supply
- APP sensor terminal C and power supply
- APP sensor terminal C and body GND
- APP sensor terminal D and power supply
- APP sensor terminal D and body GND
- APP sensor terminal E and power supply
- APP sensor terminal F and power supply
- APP sensor terminal F and body GND

*1 : California emission regulation applicable ATX model
*2 : Except for California emission regulation applicable ATX model
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