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 MANUALSCADILLAC1999SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - HVACCONTROL MODULE HVACSERVICE AND REPAIRLEFT (LHD)
1999 Cadillac Seville SLS V8-4.6L VIN Y
Left (LHD)
1999 Cadillac Seville SLS V8-4.6L VIN YSECTION Left (LHD)
[1][2]Blower Control Module Replacement (LHD)
REMOVAL PROCEDURE
1. Remove the sound insulator.
2. Remove the IP compartment.
3. Remove the dash integration module from bracket.
4. Remove the two rear dash integration module bracket screws.
5. Reposition the dash integration module bracket to gain access to the [1][2]blower control module.
6. Disconnect the blower motor electrical connector (2).
7. Disconnect the [1][2]blower control module electrical connector.
8. Remove the [1][2]blower control module retaining screw (1).
9. Remove the [1][2]blower control module.
INSTALLATION PROCEDURE
1. Install the [1][2]blower control module.
2. Install the [1][2]blower control module retaining screw (1).
3. Connect the [1][2]blower control module electrical connector.
4. Connect the blower motor electrical connector (2).
5. Reposition the dash integration module bracket to its original position.
6. Install the two rear dash integration module bracket screws.
7. Install the dash integration module to bracket.
8. Install the IP compartment.
9. Install the right sound insulator.
REMOVAL PROCEDURE
1. Remove the sound insulator.
2. Remove the IP compartment.
3. Remove the dash integration module from bracket.
4. Remove the two rear dash integration module bracket screws.
5. Reposition the dash integration module bracket to gain access to the [1][2]blower control module.
6. Disconnect the blower motor electrical connector (2).
7. Disconnect the [1][2]blower control module electrical connector.
8. Remove the [1][2]blower control module retaining screw (1).
9. Remove the [1][2]blower control module.
INSTALLATION PROCEDURE
1. Install the [1][2]blower control module.
2. Install the [1][2]blower control module retaining screw (1).
3. Connect the [1][2]blower control module electrical connector.
4. Connect the blower motor electrical connector (2).
5. Reposition the dash integration module bracket to its original position.
6. Install the two rear dash integration module bracket screws.
7. Install the dash integration module to bracket.
8. Install the IP compartment.
9. Install the right sound insulator.
RENDER: 1.0x
NO RELATED
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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.