Transmission Control Module

Transmission Control Module - Gen 5 DD15 - Ops - #7628

Vehicles equipped with a Detroit Transmission will also be equipped with a TCM. The TCM will be mounted on the left side of the transmission (see graphic below).

Fig. 1, Transmission Control Module

The TCM includes control logic to provide overall Transmission management. The TCM monitors various speed, load, and clutch inputs in conjunction with the CPC, which drive the outputs that are required to shift the Transmission.
Note:
Document Number: 0000009742
Manual Publication Date: 2024-01-03
Topic Publication Date: 2025-04-16