GM Service Manual Online
For 1990-2009 cars only

Important: This procedure contains replacement information for ONLY the wiring harness. For replacement information on the solenoids or the switches, refer to the specific replacement procedure.

Removal Procedure

  1. Remove the case side cover. Refer to Control Valve Body Cover Replacement .

  2. Object Number: 48209  Size: SH
  3. Use a small flat-bladed tool in order to remove the wiring harness from the solenoid valve(s) (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and/or the temperature sensor (391).

  4. Object Number: 48210  Size: SH
  5. Remove the wiring harness (224).
  6. Remove the clips retaining the solenoid(s).

Installation Procedure


    Object Number: 48210  Size: SH
  1. Install the wiring harness (224).

  2. Object Number: 49409  Size: SH
  3. Install the wiring harness to the solenoid valve(s) (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and/or the temperature sensor (391).
  4. Install the case side cover. Refer to Control Valve Body Cover Replacement .