GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2009 🢒 H2 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Air Conditioning Cycling Switch Replacement

Removal Procedure
  1. Disconnect the electrical connector from the A/C low pressure switch.

    2. Object Number: 660417 Size: SH
  2. Remove the A/C low pressure switch from the accumulator.
  3. Remove the O-ring and discard.

Installation Procedure
  1. Install the NEW O-ring seal to the switch. Refer to O-Ring Replacement.

    2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 660417 Size: SH
  2. Install the A/C low pressure switch to the accumulator.

    3. Tighten
    Tighten the switch to 6 N·m (53 lb in).

  3. Connect the electrical connector to the A/C low pressure switch.