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 1084 (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 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Radio/Integrated Radio Control Scan Tool Data List (IRC)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition ON/Engine OFF/Radio ON | |||
| 8 Digit GM Part Number | Module Information | Numeric | Varies |
| Antenna Signal | System Configuration | dBuV | Varies |
| Amplifier | System Configuration | Present/Not Present | Varies |
| Band Number | System Configuration | FM1/FM2/AM | Varies |
| Calibration ID | Module Information | Numeric | Varies |
| Cassette Cut Tape | Cassette Information | Numeric | Varies |
| Cassette Load/Unload Error | Cassette Information | Numeric | Varies |
| Cassette Inserted | Cassette Information | Yes/No | Varies |
| Cassette Metal | Cassette Information | Metal/Not Metal | Varies |
| Cassette Side | Cassette Information | Bottom/Top | Varies |
| Cassette Tight Tape | Cassette Information | Numeric | Varies |
| CD Focus Errors | CD Information | Numeric | Varies |
| CD Load/Unload Errors | CD Information | Numeric | Varies |
| CD Tracking Errors | CD Information | Numeric | Varies |
| CD Inserted | CD Information | Yes/No | Varies |
| Driver Number | System Configuration | 1/2 | 1 (2 if the memory 2 button has been activated) |
| Julian Date of Build | Module Information | Numeric | Varies |
| New VIN Counter | System Configuration | Numeric | Varies |
| Phone | System Configuration | Present/Not Present | Varies |
| Preset Control | System Configuration | Preset 1-6/Not a Preset | Preset 1-6, if active radio station is a preset |
| PROM ID | Module Information | Numeric | Varies |
| Sequence Number | Module Information | Numeric | Varies |
| Single CD Track Number | CD Information | Numeric | Varies |
| Source | System Configuration | Off/Tuner/CD/Cassette | Varies |
| Theft Armed | System Configuration | Yes/No/Learn VIN Number | Varies |
| Theft Lock | System Configuration | Locked/Unlocked | Unlocked |
| Total Cassette Hours | Cassette Information | Hrs. | Varies |
| Total CD Hours | CD Information | Hrs. | Varies |
| Total Radio Hours | Module Information | Hrs. | Varies |
| Year Module Built | Module Information | Numeric | Varies |
Digital Radio Receiver Scan Tool Data List
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Radio ON | |||
| 8-Digit GM Part Number | ID Information/Module Information | Numeric | Varies |
| Battery Voltage | Data | Volts | Varies |
| Day | ID Information/DSP Software Version ID | - | Varies |
| Day | ID Information/XM Software Version ID | - | Varies |
| Digital Radio Antenna | Data | Millivolts | Varies |
| Ignition Counter | Data | Numeric | Varies |
| Julian Date Of Build | ID Information/Module Information | Numeric | Varies |
| Month | ID Information/DSP Software Version ID | - | Varies |
| Month | ID Information/XM Software Version ID | - | Varies |
| Power Mode | Data | - | run |
| Software Version | ID Information/DSP Software Version ID | - | Varies |
| Software Version | ID Information/XM Software Version ID | - | Varies |
| Year | ID Information/DSP Software Version ID | - | Varies |
| Year | ID Information/XM Software Version ID | - | Varies |
| Year Module Built | ID Information/Module Information | - | Varies |
| Electronic Serial Number | ID Information/Electronic Serial Number | Alphanumeric | Varies |
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.