GM Service Manual Online
For 1990-2009 cars only

Circuit Description

This DTC allows the cruise control module to check for unwanted application of the servo due to a malfunction within the cruise control module.

Diagnostic Aids

Check for a faulty cruise control module.

Step

Action

Value(s)

Yes

No

1

Was the Cruise Control Diagnostic System Check performed?

--

Go to Step 2

Go to

Cruise Control System Check

2

  1. Turn the ignition switch to the LOCK position.
  2. Clear any DTCs present.
  3. Test drive the vehicle at approximately 80 km/h (50 mph).
  4. Engage the cruise control and observe the performance for one minute.
  5. Stop the vehicle and test for DTCs.

Does this DTC reset?

--

Go to Step 3

Go to Step 4

3

Replace the cruise control module.

Is the repair complete?

--

Go to

Cruise Control System Check

--

4

Malfunction is not present at this time. Refer to diagnostic aids for additional information.

Is the action complete?

--

Go to

Cruise Control System Check

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