Installation Procedure

Fig 1: Identifying Brake Pressure Modulator Valve & Electronic Brake Control Module

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Do not use RTV or any other type of sealant on the EBCM gasket or mating surfaces.

Install the EBCM (2) onto BPMV (1).

NOTE: Refer to Fastener Notice .

IMPORTANT: Do not reuse the old mounting bolts. Always install new EBCM bolts with the new BPMV.

Install the EBCM bolts.
Tighten: Tighten the bolts to 5 N.m (44 lb in) in an X-pattern.
Connect the 2-way ABS pump motor connector to the EBCM.
Install the BPMV (1) to EHCU bracket (3).
Install the BPMV (1) to bracket retaining bolts (4).
Tighten: Tighten the bolts to 9 N.m (80 lb in).

Fig 2: Identifying Electric Hydraulic Control Unit Mounting Bracket To Frame Rail Bolts

Courtesy of GENERAL MOTORS CORP.

Install the EHCU to the vehicle frame.
Tighten: Tighten the 3 EHCU bracket bolts to 25 N.m (18 lb ft).
Connect the 2 electrical harness connectors to the EBCM.

IMPORTANT: The brake pipes are held in place by a plastic bracket mounted to the frame. Make sure that the brake pipes stay in the correct place for proper reassembly.

Install the brake pipes to the BPMV.
Tighten: Tighten the brake pipe fittings to 30 N.m (22 lb ft).
Bleed the brake system. Refer to Hydraulic Brake System Bleeding (Manual) or Hydraulic Brake System Bleeding (Pressure) .
Bleed the brake system. Refer to Antilock Brake System Automated Bleed Procedure (W/JL4) or Antilock Brake System Automated Bleed Procedure (w/o JL4) .