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Home >> GMC >> 1999 >> S15/T15 Jimmy 2WD V6-4.3L VIN W >> Repair and Diagnosis >> Heating and Air Conditioning >> Control Assembly >> Service and Repair >> HVAC Control Assembly Replacement
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HVAC Control Assembly Replacement

REMOVAL PROCEDURE




1. Remove the instrument panel accessory trim plate.
2. Remove the control assembly retaining screws.
3. Depress the control assembly retaining tabs and remove the control assembly from the instrument panel.




4. Disconnect the vacuum harness connector (1) from the control assembly.




5. Disconnect the electrical connectors from the control assembly.

INSTALLATION PROCEDURE




1. Connect the electrical connectors to the control assembly.




2. Connect the vacuum harness connector (1) to the control assembly




3. Install the control assembly to the instrument panel. Ensure that all 4 retaining tabs lock into place.

NOTE: Refer to Fastener Notice in Service Precautions.

4. Install the control assembly retaining screws.

Tighten
Tighten the screws to 1.9 N.m (17 lb in).

5. Install the instrument panel accessory trim plate.
6. Perform a heater function test. Component Tests and General Diagnostics

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