GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 LaCrosse 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Pressure Control Solenoid Valve Replacement

Removal Procedure
  1. Remove the case side cover. Refer to Control Valve Body Cover Replacement .
  2. Disconnect the pressure control solenoid (PCS) electrical connector.
  3. Remove the PCS retaining clip (314E).

    4. Object Number: 49378 Size: SH
  4. Remove the PCS (322).

Installation Procedure

    Object Number: 49378 Size: SH
  1. Install the PCS (322).
  2. Install the PCS retaining clip (314E).
  3. Connect the PCS electrical connector.
  4. Install the case side cover. Refer to Control Valve Body Cover Replacement .

    5. Important: It is recommended that transmission adaptive pressure (TAP) information be reset.

    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

  5. Reset the TAP values. Refer to Transmission Adaptive Functions .