Homelink Universal Transceiver Circuit Check

Homelink Universal Transceiver Circuit Check

Description

Homelink universal transceiver can store and transmit a maximum of 3 radio signals.

Allows operation of garage doors, gates, home and office lighting, entry door locks and security system, etc.

Homelink universal transceiver power supply uses vehicle battery, which enables it to maintain every program in case battery is discharged or removed.

Component Function Check

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 ILLUMINATION

1 Turn ignition switch "OFF".
2 Press each of the transmitter buttons and watch for the red light to illuminate with each button.






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).

Diagnosis Procedure

Regarding Wiring Diagram information, refer to [Integrated Homelink Transmitter: Wiring Diagram] [1][2]Electrical Diagrams.

1. CHECK POWER SUPPLY

1 Disconnect auto anti-dazzling inside mirror (homelink universal transceiver) connector.
2 Check voltage between auto anti-dazzling inside mirror (homelink universal transceiver) harness connector and ground.











Is the inspection result normal?
YES
GO TO 2
NO
Check the following.

- 10 A fuse [No. 19 located in the fuse block (J/B)]
- Harness for open or short between fuse and auto anti-dazzling inside mirror (homelink universal transceiver).

2. CHECK GROUND CIRCUIT

Check continuity between auto anti-dazzling inside mirror (homelink universal transceiver) harness connector and ground.











Is the inspection result normal?
YES
GO TO 3
NO
Repair harness.

3. CHECK INTERMITTENT INCIDENT

Refer to [Service Information for Electrical Incident: Intermittent Incident] Service Information for Electrical Incident: Intermittent Incident.


Inspection End.