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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 705 (LIGHTING SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DATA LIST
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Scan Tool Data List
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Scan Tool Data List
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
BCM Scan Tool Data List
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition On and Engine Off/Doors, Hatch or Trunk, and Hood Closed/No Switches On/Vehicle in Park or Neutral | |||
| Console Switch Illumination | Data | 0-100% | Varies with Dimming Level |
| Driver Door Ajar Switch | Input Data 2 | Open/Closed | Closed |
| DRL Ambient Light Sensor | Data | Volts | Varies with Ambient Light Level |
| Fog Light Switch Illumination | Data | 0-100% | Varies with Dimming Level |
| Front Fog Light Switch | Input Data 1 | Active/Inactive | Inactive |
| Headlamp Off Switch | Input Data 1 | Active/Inactive | Active |
| HVAC Bulb Illumination | Data | 0-100% | Varies with Dimming Level |
| Inadvertent Load Monitor | Input Data 1 | Active/Inactive | Active |
| Left Turn Monitor | Input Data 1 | Active/Inactive | Inactive |
| Passenger Door Ajar Switch | Input Data 2 | Open/Closed | Closed |
| PRNDL Illumination | Data | 0-100% | Varies with Dimming Level |
| Rear Fog Light Switch | Input Data 1 | Active/Inactive | Inactive |
| Right Turn Monitor | Input Data 1 | Active/Inactive | Inactive |
IPC Scan Tool Data List
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition On and Engine Off/Doors, Hatch or Trunk, and Hood Closed/No Switches On/Vehicle in Park or Neutral | |||
| Ambient Light Sensor | Data 2 | Counts | 0-255 |
| Brake Lamp | Inputs | On/Off | Off |
| Courtesy Switch | Inputs | Active/Inactive | Inactive |
| Head Lamp State | Inputs | On/Off | Off |
| High Beam Lamp | Inputs | On/Off | Off |
| Left Turn Signal | Inputs | On/Off | Off |
| Park Brake Switch | Inputs | Active/Inactive | Inactive |
| Right Turn Signal | Inputs | On/Off | Off |
| Switch Dimming | Data 2 | Counts | 0-255 |
LDCM Scan Tool Data List
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition On and Engine Off/Doors, Hatch or Trunk, and Hood Closed/No Switches On/Vehicle in Park or Neutral | |||
| Door Ajar | Inputs | Closed/Ajar | Closed |
| Door Switch Pad Illumination | Data | 0-100% | Varies with Dimming Level |
RDCM Scan Tool Data List
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition On and Engine Off/Doors, Hatch or Trunk, and Hood Closed/No Switches On/Vehicle in Park or Neutral | |||
| Door Ajar | Inputs | Closed/Ajar | Closed |
| Door Switch Pad Illumination | Data | 0-100% | Varies with Dimming Level |
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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.