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 MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1090 (ANTILOCK BRAKE SYSTEM AND TRACTION CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL OUTPUT CONTROLS
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Scan Tool Output Controls
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Scan Tool Output Controls
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| Automated Bleed Procedure | - | Used in order to bleed the ABS hydraulics. Refer to ABS Automated Bleed Procedure . |
| ABS Warning Lamp | Solenoid Test | Commands the ABS indicator ON and OFF. |
| LF Inlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| LF Outlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| LR Inlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| LR Outlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| LF Master Cylinder Isolation Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| LF Prime Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| Pump Motor | - | Commands the pump motor ON and OFF. |
| RF Inlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| RF Outlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| RF Master Cylinder Isolation Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| RF Prime Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| RR Inlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| RR Outlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| TCS On/Off test | - | Commands the traction control system ON and OFF. Performs the same function as the traction control switch. |
RENDER: 1.0x
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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.