CHECK HARNESS BETWEEN ECM AND ACCELERATOR PEDAL POSITION SENSOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from the accelerator pedal position sensor.

3) Turn the ignition switch to ON.

4) Measure the voltage between accelerator pedal position sensor connector and chassis ground.

Connector & terminal

(B315) No. 6 — Chassis ground (−):

QUESTION

Is the voltage 5 V or more?

Yes No

Repair the short circuit to power supply in harness between ECM connector and accelerator pedal position sensor connector.