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How do you Change, Replace, or Install Broken 1996-1999 Cadillac DeVille AC Heater Air Temperature Control Replacement

Fits Years: 1996, 1997, 1998, 1999


Tools required:

  • 7/32 socket/ratchet with extension

  • Flathead screwdriver

  • Needle-nose pliers


NOTE: In this installation, we'll be working on the UNDERSIDE of the dash, near the PASSENGER'S feet.

Step 1: Using the flathead screwdriver, disengage the retaining clips (3) that hold the trim panel to the underside of the dashboard. Remove this panel.

Step 2: Using the needle-nose pliers, squeeze and remove the tab on the RIGHT side of the actuator.

Step 3: Loosen and remove the 7/32 mounting bolts (2) that secure the actuator to the vehicle.

Step 4: Disconnect the wiring harness (1) attached to the actuator.

Step 5: Connect the wiring harness (1) to the actuator.

Step 6: Mount the new actuator by tightening the 7/32 mounting bolts (2).

Step 7: Re-engage the small tab on the RIGHT side of the actuator.

Step 8: Reattach the trim panel to the underside of the dash by re-engaging the retaining clips (3).



These Part Change / Installation Instructions Apply to
99 1999, 98 1998, 97 1997, 96 1996 Cadillac DeVille AC Heater Air Temperature Control Replacement Instructions
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