GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the entire Cruise Control System Check performed?

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Go to Step 2

Go to Cruise Control System Check

2

  1. Turn the ignition switch to the RUN position.
  2. Turn the cruise control switch to the ON position.
  3. Using a test light, backprobe connector C201, at the base of the steering column, from terminal A15 to ground.
  4. Press and hold the RESUME/ACCEL switch.

Does the test light illuminate?

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Go to Step 3

Go to Step 4

3

  1. Test for an open in CKT 87, between connector C201 and the cruise control module.
  2. Test for a poor connection at the cruise control module terminal C.
  3. If the connection is OK, replace the cruise control module. Refer to Cruise Control Module Replacement .

Is the repair complete?

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Go to Step 5

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4

  1. Test for one of the following conditions in CKT 87, in the steering column:
  2. • An open
    • A short to ground
  3. Test for a poor connection at connector C201 terminal A15.
  4. If the connection is OK, replace the cruise control switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column-Tilt.

Is the repair complete?

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Go to Step 5

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5

  1. Turn the ignition switch to the OFF position.
  2. Reconnect all connectors components removed.

Have all the repairs been made?

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Go to Cruise Control System Check

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