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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1505 (Keyless Entry System And Remote Functions) >> Diagnostic Information and Procedures >> Garage Door Opener Inoperative (Three LEDs) >> Reference Information
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Reference Information

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Schematic Reference 

Remote Function Schematics 

Connector End View Reference 

Component Connector End Views

Description and Operation 

Garage Door Opener Description and Operation 

Electrical Information Reference 

Scan Tool Reference 

Control Module References

Special Tools Required 

J 41540  Universal Home Remote Tester

Diagnostic Aids 

In circuit/system testing, in step 4, the two outer buttons of the transmitter are pressed and held in order to enter the diagnostic mode so that the transmitter can be used with the GDO tester. The transmitter will complete the following during the process:

  1. After 20 seconds, the LEDs will flash indicating all codes are cleared and the default settings are set.
  2. After an additional 10 seconds, the LEDs will flash again indicating that the diagnostic settings are now programmed into all three buttons.