HVAC and blower cannot be turned off without removing the fuse.
May 31, 2018 at 4:23 PM
Blower fan runs after car is turned off
1997 BUICK RIVIERA
SHIPCASA
- MEMBER
- 1 POST
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good evening.
The blower control module is what controls the blower motor speeds and whether it is on or off.
It is under the right side of the dash by the blower motor. I attached the procedure below and the wiring diagram as well.
Roy
Note: The OEM service manual does not provide an image for this component.
REMOVE OR DISCONNECT
1. Right sound insulator.
2. Electrical connector.
3. Blower control module.
INSTALL OR CONNECT
1. Blower control module.
2. Electrical connector.
3. Right sound insulator.
The blower control module is what controls the blower motor speeds and whether it is on or off.
It is under the right side of the dash by the blower motor. I attached the procedure below and the wiring diagram as well.
Roy
Note: The OEM service manual does not provide an image for this component.
REMOVE OR DISCONNECT
1. Right sound insulator.
2. Electrical connector.
3. Blower control module.
INSTALL OR CONNECT
1. Blower control module.
2. Electrical connector.
3. Right sound insulator.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
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Click here to log in and view diagram.
May 31, 2018 at 5:28 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.