CTS V8-5.7L VIN P (2004)
Hydraulic Control Assembly - Antilock Brakes: Service and Repair
Brake Pressure Modulator Valve (BPMV) Replacement
CTS
Brake Pressure Modulator Valve (BPMV) Replacement (CTS)
Caution: Refer to Brake Dust Caution in Service Precautions.
Removal Procedure
Caution: For safety reasons, the brake pressure modulator valve assembly must not be repaired, the complete unit must be replaced. With the
exception of the EBCM, no screws on the brake pressure modulator valve assembly may be loosened. If screws are loosened, it will not be possible to
get the brake circuits leak-tight and personal injury may result.
1. Turn OFF the ignition.
2. Important: The area around the Electronic Brake Control Module (EBCM) must be free from loose dirt to prevent contamination of
disassembled ABS components.
Thoroughly clean all contaminants from around the EBCM.
3. Important: It is not necessary to drain the coolant or disconnect the coolant lines from the coolant bypass valve.
Disconnect the coolant bypass valve from the radiator and position out of the way.
4. Caution: Brake fluid may irritate eyes and skin. In case of contact, take the following actions:
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Eye contact: rinse thoroughly with water.
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Skin contact: wash with soap and water.
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If ingested: consult a physician immediately.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components in Service Precautions.
Important: Record the location of all brake pipes to the brake pressure modulator valve (BPMV) for use as an aid during installation.
Remove the 2 master cylinder brake pipes (3) from the BPMV (1).
5. Remove the 4 wheel brake pipes (2) from the BPMV (1).
6. Clean any brake fluid spillage from the BPMV (1).
7. If equipped with a brake fluid pressure sensor (4), disconnect the electrical connector, from the brake fluid pressure sensor.