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HVAC Control Module Programming And Setup
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic procedure: Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis
NOTE:
Do NOT program a control module unless directed to by a
service procedure or a service bulletin. If the control module
is not properly configured with the correct calibration
software, the control module will not control all of the
vehicle features properly.
Verify the programming tool is equipped with the latest
software and is securely connected to the data link
connector. If there is an interruption during programming,
programming failure or control module damage may occur.
Stable battery voltage is critical during programming. Any
fluctuation, spiking, over voltage or loss of voltage will
interrupt programming. When required install the below
mentioned special tool to maintain system voltage. If not
available, connect a fully charged 12 V jumper or booster
pack disconnected from the AC voltage supply.
Turn Off or disable systems that may put a load on the
vehicle's battery. For example, interior lights, daytime
running lights, HVAC and radio.
During the programming procedure, follow the Service
Programming System (SPS) prompts for the correct ignition
switch position.
Clear DTCs after programming is complete. Clearing
powertrain DTCs will set the Inspection/Maintenance (I/M)
system status indicators to No.
Reference Information
Special Tools
EL-49642 SPS Programming Support Tool
Equivalent regional tools: Special Tools.
Programming An Existing Or New Control Module
To program an existing or new control module, perform the following procedure:
YMMS: Mar 8, 2021
Engine: 2.0L Eng License:
VIN: Odometer:
2017 Chevrolet Malibu Premier
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1. Install the special tool: EL-49642 SPS Programming Support Tool
2. Ignition - On / Vehicle - In Service Mode
3. Access SPS and follow the on-screen instructions for the control module: K33 HVAC Control Module
4. Perform the SPS function: Programming
Unsuccessful Programming Recovery
If programming a control module is not successful, perform the following procedure:
1. Verify the control module, data link connector and programming tool connections are secure and the
tool software is up to date.
2. Ignition - On / Vehicle - In Service Mode
3. Perform the SPS function: Programming
Verify the control module programming is successful.
1. If the programming is not successful
1. Ignition/Vehicle - Off - For greater than 1 min
2. Ignition - On / Vehicle - In Service Mode
3. Perform the SPS function: Programming
1. If the programming is not successful - Replace the component: K33 HVAC Control Module
2. If the programming is successful
4. All OK.
1. If the programming is successful
4. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification
For control module replacement, programming and setup, refer to Control Module References
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