Garage Door Opener Inoperative

Garage Door Opener Inoperative

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Diagnostic System Check - Vehicle
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Description

The garage door opener (GDO) is a transmitter operating between 288 and 399 MHz. The GDO has 3 buttons that may be programmed for individual transmitter/receiver combinations to control up to 3 GDOs, security gates, and lighting systems. Each button represents a transmitter code section of the transmitter, which operates separately from any other button, and may be considered a separate transmitter. Battery voltage is provided to the GDO from the PCM fuse in the underhood fuse block.

Circuit/System Testing

1. Ignition ON, valet switch OFF, if equipped. Press each button of the GDO one at a time. The LED on the GDO should illuminate with each button pressed.

• If none of the buttons respond, test the battery positive voltage circuit and the ground circuit for an open/high resistance. If the circuits test normal, replace the GDO.

2. Ignition ON, hold the 2 outer buttons on the GDO until the LED on the GDO stops flashing. Place the J41540 adjacent to the GDO and press each button of the GDO one at a time. The tester should indicate when each button is pressed.

• If the tester indicates that one or more of the buttons does not respond, replace the GDO.

3. Program the GDO with the customers remote. A possible rolling code or incompatibility with the GDO receiver will prevent programming. Refer to www.homelink.com or 1-800-355-3515.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

Control Module References for GDO replacement, setup, and programming