2016 Cadillac SRX BaseFACTORY OEM SERVICE PROCEDURE

HVAC Module Components

HVAC Module Components

Items
1. B7H Air Temperature Sensor - Duct Left Upper B7H Air Temperature Sensor - Duct Left Upper
2. B7D Air Temperature Sensor - Duct Left Lower B7D Air Temperature Sensor - Duct Left Lower
3. K33 HVAC Control Module K33 HVAC Control Module X1K33 HVAC Control Module X2K33 HVAC Control Module X3K33 HVAC Control Module X4
4. B7E Air Temperature Sensor - Duct Right Lower B7E Air Temperature Sensor - Duct Right Lower
5. B7J Air Temperature Sensor - Duct Right Upper B7J Air Temperature Sensor - Duct Right Upper
6. M46 Air Recirculation Door Actuator M46 Air Recirculation Door Actuator
7. M8 Blower Motor M8 Blower Motor
8. K8 Blower Motor Control Module K8 Blower Motor Control ModuleK8 Blower Motor Control Module
9. B39 A/C Evaporator Temperature Sensor B39 A/C Evaporator Temperature Sensor
10. M6R Air Temperature Door Actuator - Right M6R Air Temperature Door Actuator - Right
11. M37 Mode Door Actuator M37 Mode Door Actuator
12. M6B Air Temperature Door Actuator - Auxiliary (CJ4) M6B Air Temperature Door Actuator - Auxiliary (CJ4)
13. M6L Air Temperature Door Actuator - Left M6L Air Temperature Door Actuator - Left
Fig 1: HVAC Module Components
GM2296980Courtesy of GENERAL MOTORS COMPANY
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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.