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 1793 (HYBRID CONTROL SYSTEM)COMPONENT LOCATORHYBRID CONTROLS COMPONENT VIEWS
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Hybrid Controls Component Views
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Hybrid Controls Component Views
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
| Callout | Component Name |
|---|---|
| 1 | Starter Generator Control Module (GCM) |
| 2 | Automatic Transmission Pump - Auxiliary |
| 3 | Starter Generator Control Module (GCM) Connectors |
| 4 | Starter Generator Control Module (GCM) Bracket |
| 5 | Hybrid Pump Driver |
| 6 | Starter Generator Control Module (GCM) Coolant Pump |
| 7 | Starter Generator |
| Callout | Component Name |
|---|---|
| 1 | Powertrain Control Module (PCM) |
| 2 | Transmission Control Module (TCM) |
| 3 | Crankshaft Position (CKP) Sensor |
| 4 | Engine Oil Pressure (EOP) Switch |
| 5 | Knock Sensor |
| 6 | Starter |
| 7 | A/C Compressor Clutch |
| 8 | Starter Generator |
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.