GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

SCHEMATIC REFERENCE:

CCM, PCM Controls and Vehicle Speed Input


Object Number: 411964  Size: FS
Cruise Control Components
Cruise Control System Circuit Description
Cruise Control Switch, CCM Power and Grounds

1

Did you perform A Diagnostic System Check- Instrument Cluster?

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Go to Step 2

Go to Diagnostic System Check - Cruise Control

2

Turn ON the ignition, with the engine OFF.

Does the cruise indicator illuminate during bulb check?

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Go to Step 3

Go to Step 6

3

  1. Install a scan tool.
  2. Operate the vehicle within the parameters for enabling the cruise control, and set the cruise control.
  3. Observe the Cruise Lamp parameter in the IPC data list.

Does the scan tool indicate that the cruise lamp is commanded On?

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Go to Step 5

Go to Step 4

4

Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 7

Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls

5

Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 7

Go to Step 6

6

Replace the instrument panel cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console.

Did you complete the repair?

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Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2