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How to Install a Brake Control Box on a 91 Chevy

Chevrolet vehicles made in 1991 typically have an anti-lock braking system, or ABS, to improve the vehicles braking ability during an emergency stop. An electronic brake control module, or EBCM, monitors the rotation speed of each wheel. The EBCM decreases the braking force to a wheel when it detects that the wheel is rotating more slowly than the other wheels. The procedure for installing the EBCM is generally the same among many Chevrolet cars made from 1982 to 1994.

Instructions

1

Disconnect the cable from the negative battery terminal with a socket wrench. An electrical discharge from the battery can damage the EBCM when you remove it.

2

Unplug the electrical connectors from the EBCM. The EBCM is a small, box-like component mounted to the dash panel on the drivers side. It typically has two electrical connectors.

3

Remove the three hex head screws from the EBCM with a hex wrench. Detach the EBCM from the dash panel. Remove it from the vehicle.

4

Align the holes in the grommets on the new EBCM with the corresponding holes in the dash panel. Hold the EBCM to the dash panel.

5

Attach the hex head screws to the EBCM with a hex wrench. Torque the screws to 17 pound-feet with a torque wrench.

6

Attach the electrical connectors to the EBCM and connect the cable for the negative battery terminal with a socket wrench.