GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Did you perform the Diagnostic System Check - Driver Information Systems?

Go to Step 2

Go to Diagnostic System Check - Driver Information Systems in Instrument Panel, Gauges and Console

2

Push each button on the universal garage door opener (UGDO).

Do all three buttons illuminate the LED?

Go to Step 5

Go to Step 3

3

Do any buttons illuminate the LED?

Go to Step 6

Go to Step 4

4

Does the DIC display function?

Go to Step 5

Go to Diagnostic System Check - Driver Information Systems in Instrument Panel, Gauges and Console

5

  1. Remove the universal garage door opener (UGDO) leaving the harness connector connected. Refer to Roof Console Replacement
  2. Place the UGDO on the J43241 Keyless Entry Tester.

Does the J43241 verify each button when pressed?

Go to Step 7

Go to Step 6

6

Replace the DIC. Refer to Roof Console Replacement

Did you complete the replacement?

Go to Step 7

--

7

Program the GDO. Refer to Garage Door Opener Programming - Universal

Did you complete the procedure?

Go to Step 8

--

8

Return the vehicle to the customer in order to verify the repair.

Does the GDO operate properly for the customer?

System OK

Advise the customer to call HomeLink at 800 355 3515