CHECK HARNESS BETWEEN ECM AND NEUTRAL POSITION SWITCH CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connectors from ECM and neutral position switch.

3) Measure the resistance between ECM and chassis ground.

Connector & terminal

(B136) No. 31 — Chassis ground:

QUESTION

Is the resistance 1 MΩ or more?

Yes No

Replace the neutral position switch.

Repair the short circuit to ground harness between ECM and neutral position switch connector.