1.CHECK FUNCTION Check that system receiver (garage door opener, etc.) operates with original hand-held transmitter. Is the inspection result normal? YES>>GO TO 2. NO>>Receiver or hand-held transmitter is malfunctioning.
2.CHECK ILLUMINATE

1. Turn ignition switch OFF.
2. Does red light of transmitter illuminate when any transmitter button is pressed?

Is the inspection result normal?
YES>>GO TO 3.
NO>>Refer to Diagnosis Procedure.
3.CHECK TRANSMITTER
Check transmitter with Tool*.
*:For details, refer to Technical Service Bulletin.
Is the inspection result normal?
YES>>Receiver or hand-held transmitter malfunction, not vehicle related.
NO>>Replace auto anti-dazzling inside mirror (homelink universal transceiver). Refer to Removal and Installation.