Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 1990 >> Crown Victoria V8-302 5.0L VIN F FI >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - HVAC >> Control Module HVAC >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Control Module HVAC: Service and Repair

REMOVAL
1. Disconnect the wiring harness connector from the Variable Blower Speed Controller (VBSC) assembly.

Variable Blower Speed Controller (VBSC):






2. Remove the two VBSC assembly retaining screws securing the VBSC board to the evaporator case assembly.
3. Remove the VBSC assembly.

INSTALLATION
1. Position the VBSC assembly in the opening in the evaporator case assembly.
2. Install the two VBSC assembly retaining screws and tighten.
3. Connect the VBSC wiring harness and check the blower for proper operation.
pro multis · About Operation CHARM