GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Cruise Control System Check?

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Go to Step 2

Go to Cruise Control System Check

2

  1. Disconnect the cruise control module electrical connector.
  2. Turn the ignition switch to the RUN position.
  3. Move the cruise control switch to the ON position.
  4. Connect a test lamp from cavity C of CKT 87 (GRY/BLK) to ground.
  5. Press and hold the RESUME/ACCEL switch.

Does the test lamp light?

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Go to Step 3

Go to Step 5

3

Inspect the cruise control module for a faulty connection.

Are the connections OK?

--

Go to Step 7

Go to Step 4

4

Repair or clean the connections as needed.

Did you complete the repair?

--

Go to Cruise Control System Check

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5

Inspect for an open in CKT 87 (GRY/BLK) between the cruise control module and the cruise control switch.

Is the circuit OK?

--

Go to Step 7

Go to Step 6

6

Repair the open in CKT 87 (GRY/BLK) between the cruise control module and the cruise control switch.

Did you complete the repair?

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Go to Cruise Control System Check

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7

Replace the cruise control module. Refer to Cruise Control Module Replacement .

Did you complete the repair?

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Go to Cruise Control System Check

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