Transmission Control Module Installation

WARNING: This page is about a different variant/trim than selected.

Fig 1: View Of Manual Shaft Detent Lever

Courtesy of GENERAL MOTORS CORP.

Using an adjustable wrench on the manual shaft detent lever (710), turn the shaft clockwise until it stops.
Turn the shaft counter-clockwise one position to the neutral location. To verify turning the shaft in the correct direction, on the manual shaft detent lever (710) the reverse position is larger and more resistance can be felt.

Fig 2: View Of Connector Pins & Wiring Harness Assembly

Courtesy of GENERAL MOTORS CORP.

Inspect the condition of the connector pins on the wiring harness assembly (33) for foreign material, bent pins, or broken pins.
Ensure the TCM seal (72) is installed.

Fig 3: View Of TCM Alignment Marks

Courtesy of GENERAL MOTORS CORP.

Turn the slot in the TCM to align the two marks. Do not turn more than 60 degrees.

Fig 4: View Of Transmission Control Module & Bolts

Courtesy of GENERAL MOTORS CORP.

Install the TCM (75) over the manual shaft detent lever (710) and into the wire connector.

NOTE: Refer to Fastener Notice .

Install the three bolts (76).
Tighten: Tighten the TCM bolts to 25 N.m (18 lb ft).