GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Chevy C Cab/Chassis HD (GMT 400) 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Blower Motor Relay Replacement

Removal Procedure
  1. Remove the instrument panel compartment. Refer to Instrument Panel Compartment Replacement in Instrument Panel, Gauges and Console.
  2. Disconnect the electrical connector from the blower motor relay.

    3. Object Number: 257990 Size: SH
  3. Remove the blower motor relay (3) from the relay bracket.

Installation Procedure

    Object Number: 257990 Size: SH
  1. Install the blower motor relay (3) to the relay bracket.
  2. Connect the electrical connector to the blower motor relay.
  3. Install the instrument panel compartment. Refer to Instrument Panel Compartment Replacement in Instrument Panel, Gauges and Console.