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 984 (POWER OUTLETS)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DATA LIST (W/O HP2)
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Scan Tool Data List (W/O HP2)
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Scan Tool Data List (W/O HP2)
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.
Powertrain Control Module (PCM) Scan Tool Data List (W/O HP2)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition ON/Engine OFF | |||
| Ignition 1 Signal | Engine 1, 2 Data | Volts | 9-14 V |
| GEN L-Terminal Signal Command | Engine 2 Data | On/OFF | On |
| GEN F-Terminal Signal | Engine 2 Data | % | 10-90% |
PCM - Diesel Engines Scan Tool Data List (W/O HP2)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition ON/Engine OFF 6.6L LB7 Diesel |
|||
| Ignition 1 Signal | Engine 2 Data | Volts | 9-14 V |
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.