CHECK IMM ECM FUNCTION.

Insert the key into the ignition switch (LOCK position), then measure changes in voltage between the antenna connectors.

Connector & terminal

(B142) No. 1 (+) — No. 2 (−):

QUESTION

Is the voltage −30 to 30 V? (Approx. 0.1 second after inserting the key) Is the voltage 0 V? (Approx. 1 second after inserting the key)

Yes No

Replace the IMM ECM and then replace all ignition keys (including the transponder). Then perform teaching operation. Refer to the teaching operation manual (Pub. No. S0820GZ).