CHECK INPUT SIGNAL OF ECM.

1) Turn the ignition switch to ON.

2) Measure the voltage between ECM and chassis ground with select lever at “P” range and “N” range.

Connector & terminal

(B136) No. 31 (+) — Chassis ground (−):

QUESTION

Is the voltage less than 1 V?

Yes No

Repair the poor contact of the ECM connector.