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.
Cruise Control Indicator Always On (With Throttle Actuator Control)
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Cruise Control Indicator Always On (With Throttle Actuator Control)
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Cruise Control Indicator Always On (With Throttle Actuator Control)
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Cruise Control Schematics Connector End View Reference: Cruise Control Connector End Views |
|||
| 1 | Did you perform the Cruise Control Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Cruise Control |
| 2 | Turn the ignition ON, with the engine OFF. Does the Cruise indicator illuminate after the instrument panel cluster (IPC) displays test? |
Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 |
|
Go to Step 4 | Go to Step 5 |
| 4 |
IMPORTANT:
Program the replacement PCM. Replace the PCM. Refer to the appropriate procedure:
|
Go to Step 6 | - |
| 5 | Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement
in Instrument Panel, Gages, and Console. Did you complete the replacement? |
Go to Step 6 | - |
| 6 | Operate the system in order to verify the repair. Does the system operate properly? |
System OK | Go to Step 2 |
RENDER: 1.0x
NO RELATED
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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.