1) Turn the ignition switch to ON.
2) Place the select lever other than “N” and “P” range.
3) Measure the voltage between ECM and chassis ground.
Connector & terminal
(B136) No. 31 (+) — Chassis ground (−):
Is the voltage 4.5 — 5.5 V?
Even if the malfunction indicator light illuminates, the circuit has returned to a normal condition at this time.