Transmission Control Module (TCM) Replacement

Fig 1: Transmission Control Module

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Fastener Tightening Specifications: Refer to Fastener Tightening Specifications . Preliminary Procedures Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure . Remove the air cleaner housing. Refer to Air Cleaner Assembly Replacement in Engine Controls-3.1 L. Position the powertrain control module out of the way. Refer to Powertrain Control Module (PCM) Replacement in Engine Controls-3.1 L..
1	Module, Transmission Control (TCM). Tip: Disconnect the TCM electrical connector.

Callout

Component Name

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications .

Preliminary Procedures

Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure .
Remove the air cleaner housing. Refer to Air Cleaner Assembly Replacement in Engine Controls-3.1 L.
Position the powertrain control module out of the way. Refer to Powertrain Control Module (PCM) Replacement in Engine Controls-3.1 L..

Module, Transmission Control (TCM).
Tip: Disconnect the TCM electrical connector.