GM Service Manual Online
For 1990-2009 cars only

Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement High Pressure Switch

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle

  2. Object Number: 304953  Size: SH
  3. Remove the compressor splash shield (2) and retainers (1).
  4. Remove the switch electrical connector.

  5. Object Number: 305015  Size: MH
  6. Unscrew the switch (4) from the line.

Installation Procedure


    Object Number: 305015  Size: MH
  1. Install the switch (4) to the line.
  2. Install the electrical connector to the switch (4).

  3. Object Number: 304953  Size: SH
  4. Install the compressor splash shield (2) and retainers (1).
  5. Lower the vehicle.

Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement Low Pressure Switch

Removal Procedure

  1. Remove the switch electrical connector.

  2. Object Number: 305015  Size: MH
  3. Unscrew the switch (9) from the accumulator line.

Installation Procedure


    Object Number: 305015  Size: MH
  1. Install the low-pressure switch (9) to the accumulator line.
  2. Install the electrical connector to the switch (9).