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 1473 (ENTERTAINMENT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DATA LIST
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Scan Tool Data List
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Scan Tool Data List
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Audio Amplifier
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition in RUN, Radio ON | |||
| Balance | Data | Value | -50 to +50 |
| Bass | Data | Percent | 0-100% |
| Battery Voltage | Data | Volts | 0-18V |
| Chime Volume | Data | Percent | 0-100% |
| Fade | Data | Value | -50 to +50 |
| Ignition Since Current DTC | Data | Cycles | 0-225 |
| Treble | Data | Percent | 0-100% |
| Volume | Data | Percent | 0-100% |
Radio
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition in RUN, Radio ON | |||
| 8 Digit GM Part Number | Module Information 2 | numeric | varies |
| Balance | Data | Value | -50 to +50 |
| Bass | Data | Percent | 0-100% |
| Battery Voltage | Data | Volts | 0-18V |
| Cal. Module 1 Part No | Module Information 1 | numeric | varies |
| Cal. Module 1 Suffix | Module Information 1 | alphanumeric | varies |
| Fade | Data | Value | -50 to +50 |
| Ignition Since Current DTC | Data | Cycles | 0-225 |
| Midrange | Data | Percent | 0-100% |
| Operational S/W Part No | Module Information 1 | numeric | varies |
| Operational S/W Suffix | Module Information 1 | alphanumeric | varies |
| Signal Strength | Data | dB | 0-225 |
| Treble | Data | Percent | 0-100% |
| Volume | Data | Percent | 0-100% |
Rear Seat Audio (RSA) Controller
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition in RUN, Radio ON | |||
| Battery Voltage | Data | Volts | 0-18V |
| Ignition Since Current DTC | Data | Cycles | 0- 225 |
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.