GM Service Manual Online
For 1990-2009 cars only

Blower Motor Resistor Replacement LHD Only

Removal Procedure


    Object Number: 859447  Size: SH
  1. Disable the SIR system. Refer to Disabling the SIR System in SIR.
  2. Remove the screws and unsnap the windshield defroster duct from the mode valve assembly. Lift up on the defroster duct and move it to the right. This will allow access to the resistor assembly.

  3. Object Number: 861041  Size: SH
  4. Disconnect the blower motor resistor connector.

  5. Object Number: 859828  Size: SH
  6. Remove the screws and the blower motor resistor.

Installation Procedure


    Object Number: 859828  Size: SH
  1. Install the blower motor resistor and screws.

  2. Object Number: 861041  Size: SH
  3. Connect the blower motor resistor connector.
  4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 859834  Size: SH
  5. Move the defroster duct to the left. Install the windshield defroster duct onto the mode valve assembly and install the screws.
  6. Tighten
    Tighten the windshield defroster nozzle to 2.2 N·m (20 lb in).

  7. Enable the SIR system. Refer to Enabling the SIR System in SIR.

Blower Motor Resistor Replacement RHD Domestic Only

Removal Procedure


    Object Number: 860836  Size: SH
  1. Disconnect the blower motor resistor connector.

  2. Object Number: 860828  Size: SH
  3. Remove the screws and the blower motor resistor.

Installation Procedure


    Object Number: 860828  Size: SH
  1. Install the blower motor resistor and the screws.

  2. Object Number: 860836  Size: SH
  3. Connect the blower motor resistor connector.