Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 164 (CRUISE CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESCRUISE CONTROL INOPERATIVE/MALFUNCTIONINGTEST DESCRIPTION
2006 Pontiac G6 GTP, 2D Coupe, Standard
Test Description
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Test Description
WARNING: This page is about a different car, the 2005 Pontiac G6. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number on the diagnostic table.
- 8: This step tests the ignition 1 voltage circuit for an open, a short to ground, or a high resistance.
Cruise Control Inoperative/Malfunctioning
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Cruise Control Schematics Connector End View Reference: Powertrain Control Module (PCM) Connector End Views in Engine Controls - 3.5L (LX9) or Computer/Integrating Systems Connector End Views in Computer/Integrating Systems |
||||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Is DTC P0573 current in the powertrain control module (PCM)? | - | Go to DTC P0573 in Lighting Systems | Go to Step 3 |
| 3 |
|
- | Go to Step 4 | Go to Step 7 |
| 4 |
|
- | Go to Step 5 | Go to Step 8 |
| 5 |
|
- | Go to Step 6 | Go to Step 17 |
| 6 |
|
- | Go to Diagnostic Aids | Go to Step 17 |
| 7 |
|
- | Go to Step 12 | Go to Step 14 |
| 8 |
|
- | Go to Step 9 | Go to Step 19 |
| 9 |
|
- | Go to Step 11 | Go to Step 10 |
| 10 | Test the cruise control set/coast and resume accelerate switch signal circuit between C3 and the body control module (BCM) for the following:
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 22 | Go to Step 18 |
| 11 | Test the cruise control on switch signal circuit for the following:
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 22 | Go to Step 15 |
| 12 | Test the cruise control on switch signal circuit for a short to voltage. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 22 | Go to Step 13 |
| 13 | Test the cruise control set/coast and resume/accelerate switch signal circuit for a short to voltage between C3 and the cruise control switch. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 22 | Go to Step 17 |
| 14 | Test the cruise control set/coast and resume/accelerate switch signal circuit for a short to voltage between C3 and the BCM. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 22 | Go to Step 18 |
| 15 | Test the cruise control set/coast and resume accelerate switch signal circuit between C3 and the cruise control switch for the following:
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 22 | Go to Step 16 |
| 16 | Test the ignition 1 voltage circuit between C3 and the cruise control switch for the following:
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 22 | Go to Step 17 |
| 17 | Inspect for poor connections at the harness connector of the cruise control switch. 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 22 | Go to Step 20 |
| 18 | Inspect for poor connections at the harness connector of the BCM. 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 22 | Go to Step 21 |
| 19 | Repair the following in the Ignition 1 voltage circuit:
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? |
- | Go to Step 22 | - |
| 20 | Replace the cruise control switch. Refer to Steering Wheel Control Switch Assembly Replacement
in Steering Wheel and Column. Did you complete the replacement? |
- | Go to Step 22 | - |
| 21 | Replace the BCM. Refer to Control Module References
in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? |
- | Go to Step 22 | - |
| 22 |
|
- | System OK | Go to Step 2 |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.