GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Express - AWD 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Transmission Control Module Replacement

Object Number: 1715566 Size: MF

Callout

Component Name

Notice: Refer to Fastener Notice in the Preface section.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications .

1

Transmission Control Module (TCM) Electrical Connector.

Important: Twisting or tilting of the transmission control module electrical connector while disconnecting may result in bent or misaligned electrical terminal pins.

2

TCM Push Pins (Qty: 2)

3

TCM

Tip

    • A new TCM requires programming. Refer to Control Module References .
    • 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 .