GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2009 🢒 AURA 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Transmission Control Module Replacement

Transmission Control Module Replacement Hybrid


Object Number: 1892875 Size: MF

Callout

Component Name

1

Transmission Control Module (TCM)

Procedure

  1. Disconnect the TCM electrical connector.
  2. The TCM must be programmed when replaced. Refer to Control Module References for programming and setup information.

Tip

    • Twisting or tilting of the transmission control module electrical connector while disconnecting may result in bent or misaligned electrical terminal pins.
    • 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. Reset the TAP values. Refer to Transmission Adaptive Functions .

Transmission Control Module Replacement Non-Hybrid


Object Number: 1892874 Size: MF

Callout

Component Name

1

Transmission Control Module (TCM)

Procedure

  1. Disconnect the TCM electrical connector.
  2. The TCM must be programmed when replaced. Refer to Control Module References for programming and setup information.

Tip

    • Twisting or tilting of the transmission control module electrical connector while disconnecting may result in bent or misaligned electrical terminal pins.
    • 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. Reset the TAP values. Refer to Transmission Adaptive Functions.

2

TCM Bracket Bolt

Caution: Refer to Fastener Caution in the Preface section.

Tighten
10 N·m (89 lb in)

3

TCM Bracket