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

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, 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 3

Go to Step 4

3

With a scan tool, observe the Cruise parameter in the PCM data list.

Does the scan tool indicate that the cruise control is Engaged?

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Go to Powertrain On Board Diagnostic (OBD) System Check 2.4L or Powertrain On Board Diagnostic (OBD) System Check 3.4L in Engine Controls

Go to Step 4

4

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

Did you find and correct the condition?

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Go to Step 6

Go to Step 5

5

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

Did you complete the replacement?

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Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2