Transmission Control Module Replacement

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View of Transmission Control Module

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
CAUTION: Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables or when charging the vehicles battery. Preliminary Procedures Remove the transmission control module (TCM) cover. Disconnect the TCM electrical connector.
1	TCM Tip: Reprogram the TCM. Refer to Control Module References for programming and setup information.

Callout

Component Name

CAUTION: Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables or when charging the vehicles battery.

Preliminary Procedures

Remove the transmission control module (TCM) cover.
Disconnect the TCM electrical connector.

TCM
Tip: Reprogram the TCM. Refer to Control Module References for programming and setup information.