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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2008 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - ELECTRONIC STEERING CONTROL MODULE X2 THROUGH MEMORY SEAT MODULE)COMPONENT CONNECTOR END VIEWSHVAC CONTROL MODULE X1 (CJ2)
2006 Chevrolet Suburban K2500, 6.0 U
HVAC Control Module X1 (CJ2)
2006 Chevrolet Suburban K2500, 6.0 USECTION HVAC Control Module X1 (CJ2)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
HVAC Control Module X1 (CJ2)
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | 0.35 WH/BK | 5515 | Inside Air Temperature Sensor Assembly Control |
| 2-3 | - | - | Not Used |
| 4 | 0.35 D-GN | 734 | Inside Air Temperature Sensor Signal |
| 5 | 0.35 GY | 1548 | Passenger Sunload Sensor Signal |
| 6 | 0.35 BN | 404 | Upper Air Temperature Sensor Signal (C69) |
| 7 | 0.35 L-GN | 405 | Lower Air Temperature Sensor Signal (C69) |
| 8-10 | - | - | Not Used |
| 11 | 0.5 PK | 2014 | Coolant Pump Relay Control (HP2) |
| 12-13 | - | - | Not Used |
| 14 | 0.35 D-GN | 5518 | Auxiliary Inside Air Temperature Sensor Signal (C69) |
| 15 | 0.35 L-BU/BK | 590 | Driver Sunload Sensor Signal |
| 16 | 0.35 TN | 516 | Upper Left Air Temperature Sensor Signal |
| 17 | 0.35 TN | 517 | Upper Right Air Temperature Sensor Signal |
| 18 | 0.35 PK | 2145 | Air Temperature Switch Signal - Right (C69) |
| 19 | 0.35 GY | 2599 | Auxiliary Mode Door Control (C69) |
| 20 | - | - | Not Used |
Connector Part Information
|
Terminal Part Information
|
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.