CHECK HARNESS BETWEEN ECM AND ACCELERATOR PEDAL POSITION SENSOR.

Measure the resistance between ECM connector and chassis ground.

Connector & terminal

(B135) No. 39 — Chassis ground:

(B135) No. 39 — (B134) No. 65:

QUESTION

Is the resistance 1 MΩ or more?

Yes No

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