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

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Note

•  Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. (SeeHOW TO USE THIS MANUAL.)

Voltage inspection

1.  Turn the ignition switch to the ON position.

2.  Verify that the APP sensor output voltage (M-MDS PID: APP1, APP2) is within the specification. (See PCM INSPECTION[LF, L3].)

•  If not within the specification, replace the accelerator pedal. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION[LF, L3].)

•  If the monitor item condition/specification (reference) is not within the specification, even though there is no malfunction, perform the “Circuit Open/Short Inspection“.

Circuit Open/Short Inspection

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1.  Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION[LF, L3].)

2.  Inspect the following wiring harnesses for an 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 1AL^*1, 1AW^*2

―  APP sensor terminal B and PCM terminal 1AP^*1, 1Y^*2

―  APP sensor terminal C and PCM terminal 1AV^*1, 1AA^*2

―  APP sensor terminal D and body ground

―  APP sensor terminal E and PCM terminal 1AO^*1, 1AL^*2

―  APP sensor terminal F and main relay terminal A

Short circuit

•  If there is continuity, there is a short circuit. Repair or replace the wiring harness.

―  APP sensor terminal A and body ground

―  APP sensor terminal B and power supply

―  APP sensor terminal C and power supply

―  APP sensor terminal C and body ground

―  APP sensor terminal D and body ground

―  APP sensor terminal E and power supply

―  APP sensor terminal F and power supply

―  APP sensor terminal F and body ground