Transmission Control Module Bracket – GM (84556668)

Transmission Control Module Bracket is part of the circuit that reports engine or transmission behaviour back to the control module. It is read continuously, and a value that drifts out of range sets a fault code long before the driver notices anything.

Replace the Control Module Bracket when the code returns after clearing, when the live data reading is out of range at operating temperature, or when the housing shows heat damage. Check the ground and the connector pins first.

This Control Module Bracket is listed as part 84556668 (Transmission Control). Where a number has been superseded, the current reference is the one that ships, so check any supersession note before ordering.

The stock here is genuine GM, and this Control Module Bracket keeps the original engineering number, which matters once a number has been superseded more than once.