GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Disconnect the cruise control module connector.
  2. Turn the ignition switch to the ON position.

Is the cruise control indicator lamp ON?

--

Go to Step 2

Go to Step 3

2

  1. Locate a short to ground in circuit XP950.
  2. Repair the short to ground in circuit XP950.
  3. Replace the instrument cluster if circuit XP950 is OK. Refer to Instrument Panel, Gauges and Console.

Is the repair or the replacement complete?

--

Go to Step 4

--

3

Replace the cruise control module.

Is the replacement complete?

--

Go to Step 4

--

4

  1. Connect all connectors and components that were disconnected.
  2. Verify that the cruise control indicator lamp operates properly.

Does the cruise control indicator lamp operate properly?

--

System OK

Go to Step 1