ACCELERATOR POSITION SENSOR INSPECTION [MZR-CD (RF Turbo)]

Note

• Perform the following test only when directed.

1. Visually inspect all accelerator pedal components for looseness.

2. Verify that the accelerator position sensor is installed to the accelerator pedal properly.

3. Verify the power circuit voltage.

(1) Verify that the voltage between the PCM terminal 90 (power circuit) and 91 (GND circuit) is 4.75-5.25 V.

Note

• Voltage at the PCM terminal 10 may deviate when the power circuit voltage is abnormal.

4. Verify that the voltage between the PCM terminals 10 (accelerator position detection signal) and 91 is as shown below according to the accelerator pedal conditions.

• If the circuit is okay, replace the accelerator position sensor.

Specification

Accelerator pedal condition	Output voltage (V)
Fully released	0.4-0.7 (Target value: 0.6)
Gradually depressed	Increases linearly
Fully depressed	3.35-4.03 (Target value: 3.6)

Circuit Open/Short Inspection

1. Inspect for open/short circuit in the following wiring harnesses.

• If there is open/short circuit, repair or replace wiring harnesses.

Open circuit

• Power circuit

- Accelerator position sensor terminal A and PCM terminal 90

• Signal circuit

- Accelerator position sensor terminal B and PCM terminal 10

- Accelerator position sensor terminal C and PCM terminal 88

• GND circuit

- Accelerator position sensor terminal D and PCM terminal 91

Short circuit

• Power circuit

- Accelerator position sensor terminal A and PCM terminal 90 to GND

• Signal circuit

- Accelerator position sensor terminal B and PCM terminal 10 to power circuit

- Accelerator position sensor terminal B and PCM terminal 10 to GND

- Accelerator position sensor terminal C and PCM terminal 88 to power circuit

- Accelerator position sensor terminal C and PCM terminal 88 to GND