ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION [WL-3]
id0140b5803200
-
Note
-
• Perform the following inspection only when directed.
Voltage Inspection
1. Visually inspect all accelerator pedal components for looseness.
2. Verify that the APP sensor is installed to the accelerator pedal properly.
3. Check the power circuit voltage.
- (1) Verify that the voltage between the APP sensor terminals A (power circuit) and D (ground circuit) is 4.9—5.1 V.
-
4. Verify that the voltage between the APP sensor terminals B—D, and C—D is as shown below according to the accelerator pedal conditions.
- (1)
-
• If not as specified, carry out the “Circuit Open/Short Inspection.”
-
-
Specification (Reference)
|
Accelerator pedal condition
|
Output voltage (V)
|
|
Fully released
|
0.4—0.8
|
|
Gradually depressed
|
Increases linearly
|
|
Fully depressed
|
3.4—3.8
|
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [WL-3].)
2. Disconnect the APP sensor connector.
3. Inspect for an open or short circuit in the following wiring harnesses.
-
• If there is an open or short circuit, repair or replace wiring harnesses.
Open circuit
• Power circuit (APP sensor connector terminal A and PCM connector terminal 1A)
• Signal circuit (APP sensor connector terminal B and PCM connector terminal 1R)
• Signal circuit (APP sensor connector terminal C and PCM connector terminal 2C)
• Ground circuit (APP sensor connector terminal D and PCM connector terminal 1B)
Short circuit
• APP sensor connector terminal A and PCM connector terminal 1A short to ground
• APP sensor connector terminal B and PCM connector terminal 1R short to power supply
• APP sensor connector terminal B and PCM connector terminal 1R short to ground
• APP sensor connector terminal C and PCM connector terminal 2C short to power supply
• APP sensor connector terminal C and PCM connector terminal 2C short to ground
• APP sensor connector terminal D and PCM connector terminal 1B short to power supply