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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2040 (VEHICLE DIAGNOSTIC INFORMATION - SCAN TOOL INFORMATION)SPECIFICATIONSAUXILIARY HEATER AND AIR CONDITIONING CONTROL MODULE SCAN TOOL INFORMATION
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Auxiliary Heater and Air Conditioning Control Module Scan Tool Information
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Auxiliary Heater and Air Conditioning Control Module Scan Tool Information
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Rear HVAC/RSA Scan Tool Data Parameters
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Battery Voltage Signal | - | Varies | This displays volts. This is the voltage input supplied to the rear HVAC. |
| Display Dimming Signal | - | Varies | This displays volts. This is the current voltage supplied to the rear HVAC display dimming. |
| Left Rear Heated Seat Switch | - | Inactive | The scan tool displays Active or Inactive. This is the state of the left rear heated seat switch. |
| Power Button | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear seat audio system. |
| Program Switch | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear seat audio program switch. |
| Rear Audio Seek Down Switch | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear audio seek down switch. |
| Rear Audio Seek Up Switch | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear audio seek up switch. |
| Rear HVAC Fan Down Sw. | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear HVAC fan down switch. |
| Rear HVAC Fan Up Sw. | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear HVAC fan up switch. |
| Rear HVAC Mode Switch | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear HVAC mode switch. |
| Rear Temperature Down Switch | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear temperature down switch. |
| Rear Temperature Up Switch | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear temperature up switch. |
| Right Rear Heated Seat Switch | - | Inactive | The scan tool displays Active or Inactive. This is the state of the right rear heated seat switch. |
| Source Button | - | Inactive | The scan tool displays Active or Inactive. This is the state of the rear audio source switch. |
Rear HVAC/RSA Scan Tool Output Controls
| Scan Tool Output Control | Description |
|---|---|
| Display(s) Test | The rear HVAC/RSA module will illuminate all indicators and display segments on the module display. |
| Infrared Transmitter Power Control | The rear HVAC/RSA module will activate the infrared transmitter, which sends wireless signals to the RSA headphones. |
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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.