Buick Regal: Electronic Brake Control Module Replacement
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Preliminary Procedure
Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement (2.0L LTG) or Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement (3.6L LGX)
- Electronic Brake Control Module Bolt[4x]
CAUTION: Fastener Caution
Tighten
3N.m (27 lb in) - Electronic Brake Control Module
Procedure- Separate the control module and modulator valve only in a clean environment.
- Run all necessary programming and setup procedures. Refer to Control Module References
ELECTRONIC BRAKE AND TRACTION CONTROL MODULE WITH BRAKE PRESSURE MODULATOR VALVE REPLACEMENT (2.0L LTG)
Removal Procedure
WARNING: Brake Fluid Irritant Warning.
CAUTION: Brake Fluid Effects on Paint and Electrical Components Caution.
CAUTION: Always connect or disconnect the wiring harness connector from the EBCM/EBTCM with the ignition switch in the OFF position. Failure to observe this precaution could result in damage to the EBCM/EBTCM.
1. Ignition/Vehicle - Off.
2. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (3.6L LGX) or Battery Negative Cable Disconnection and Connection (2.0L LTG)
NOTE: Without disconnecting the electrical connectors.
3. Engine Control Module - Reposition away - Engine Control Module Replacement.
4. Without draining the coolant and without disconnecting the hoses, remove and position aside the radiator surge tank. Refer to Radiator Surge Tank Replacement.
5.
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Thoroughly clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any accumulated dirt and debris.
6. Electrical Connector(1)@Electronic Brake Control Module - Disconnect.
7.
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Brake Pipe Fitting-Front-Right Side(1) - Disconnect.
8. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
9.
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Brake Pipe Fitting-Rear-Left Side(1) - Disconnect.
10. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
11.
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Brake Pipe Fitting-Rear-Right Side(1) - Disconnect.
12. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
13.
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Brake Pipe Fitting-Front-Left Side(1) - Disconnect.
14. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
15.
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Brake Pressure Modulator Valve Secondary Pipe Fitting(1) - Disconnect.
16. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
17.
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Brake Pressure Modulator Valve Primary Pipe Fitting(1) - Disconnect.
18. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
19.
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Nut(2)@Electronic Brake Control Module - Loosen[2x].
20. Electronic Brake Control Module(1) - Remove.
Installation Procedure
1.
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Electronic Brake Control Module(1) - Install.
CAUTION: Fastener Caution.
2. Nut(2)@Electronic Brake Control Module - Tighten[2x]9N.m (80 lb in).
3.
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Remove the caps or plugs from the brake pipe fitting and the brake pressure modulator valve.
4. Brake Pressure Modulator Valve Primary Pipe Fitting(1) - Install and tighten32N.m (24 lb ft).
5.
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Remove the caps or plugs from the brake pipe fitting and the brake pressure modulator valve.
6. Brake Pressure Modulator Valve Secondary Pipe Fitting(1) - Install and tighten32N.m (24 lb ft).
7.
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Remove the caps or plugs from the brake pipe fitting and the brake pressure modulator valve.
8. Brake Pipe Fitting-Front-Left Side(1) - Install and tighten18N.m (13 lb ft).
9.
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Remove the caps or plugs from the brake pipe fitting and the brake pressure modulator valve.
10. Brake Pipe Fitting-Rear-Right Side (1) - Install and tighten18N.m (13 lb ft).
11.
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Remove the caps or plugs from the brake pipe fitting and the brake pressure modulator valve.
12. Brake Pipe Fitting-Rear-Left Side(1) - Install and tighten18N.m (13 lb ft).
13.
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Remove the caps or plugs from the brake pipe fitting and the brake pressure modulator valve.
14. Brake Pipe Fitting-Front-Right Side(1) - Install and tighten18N.m (13 lb ft).
15.
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Electrical Connector(1)@Electronic Brake Control Module - Disconnect.
16. Radiator Surge Tank Replacement - Install.
17. Engine Control Module - Reposition.
18. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (3.6L LGX) or Battery Negative Cable Disconnection and Connection (2.0L LTG).
19. Bleed the brake system. Refer to Hydraulic Brake System Bleeding (Pressure) or Hydraulic Brake System Bleeding (Manual).
20. Run all necessary programming and setup procedures. Refer to Control Module References.
21. Center the steering angle sensor. Refer to Steering Wheel Angle Sensor Centering.
ELECTRONIC BRAKE AND TRACTION CONTROL MODULE WITH BRAKE PRESSURE MODULATOR VALVE REPLACEMENT (3.6L LGX)
Removal Procedure
WARNING: Brake Fluid Irritant Warning.
CAUTION: Brake Fluid Effects on Paint and Electrical Components Caution.
CAUTION: Always connect or disconnect the wiring harness connector from the EBCM/EBTCM with the ignition switch in the OFF position. Failure to observe this precaution could result in damage to the EBCM/EBTCM.
1. Place the ignition switch in the OFF position.
2. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (3.6L LGX) or Battery Negative Cable Disconnection and Connection (2.0L LTG).
3.
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Air Cleaner Outlet Duct(1) - Remove.
4. Without draining the coolant and without disconnecting the hoses, remove and position aside the radiator surge tank. Refer to Radiator Surge Tank Replacement.
5. Thoroughly clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any accumulated dirt and debris.
6.
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EBCM Electrical Connector (1) - Disconnect.
7.
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Right Front Brake Pipe Fitting (1) - Disconnect.
8. Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
9.
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Left Rear Brake Pipe Fitting (1) - Disconnect.
10. Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
11.
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Right Rear Brake Pipe Fitting (1) - Disconnect.
12. Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
13.
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Left Front Brake Pipe Fitting (1) - Disconnect.
14. Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
15.
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Brake Pressure Modulator Valve Secondary Pipe Fitting(1) - Disconnect.
16. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
17.
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Brake Pressure Modulator Valve Primary Pipe Fitting(1) - Disconnect.
18. Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
19.
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Brake Pressure Modulator Valve Bracket Nut(1) - Loosen.
20.
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Brake Pressure Modulator Valve Bracket Nut(1) - Remove.
21.
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Brake Pressure Modulator Valve Bracket Bolt(1) - Remove.
22.
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Electronic Traction Control Brake Pressure Modulator Valve (1) - Remove.
Installation Procedure
1.
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Electronic Traction Control Brake Pressure Modulator Valve (1) - Install.
2.
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CAUTION: Fastener Caution.
Brake Pressure Modulator Valve Bracket Bolt(1) - Install and tighten9 N.m (80 lb in).
3.
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Brake Pressure Modulator Valve Bracket Nut(1) - Install and tighten9 N.m (80 lb in).
4.
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Brake Pressure Modulator Valve Bracket Nut(1) - Install and tighten9 N.m (80 lb in).
5.
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Brake Pressure Modulator Valve Primary Pipe Fitting(1) - Install and tighten.
6.
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Brake Pressure Modulator Valve Secondary Pipe Fitting(1) - Install and tighten.
7.
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Left Front Brake Pipe Fitting (1) - Install and tighten.
8.
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Right Rear Brake Pipe Fitting (1) - Install and tighten18 N.m (13 lb ft).
9.
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Left Rear Brake Pipe Fitting (1) - Install and tighten18 N.m (13 lb ft).
10.
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Right Front Brake Pipe Fitting (1) - Install and tighten.
11.
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EBCM Electrical Connector (1) - Connect.
12. Bleed the brake system. Refer to Hydraulic Brake System Bleeding (Pressure) or Hydraulic Brake System Bleeding (Manual).
13. Reposition and install the radiator surge tank. Refer to Radiator Surge Tank Replacement.
14.
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Air Cleaner Outlet Duct(1) - Install.
15. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (3.6L LGX) or Battery Negative Cable Disconnection and Connection (2.0L LTG).
16. Run all necessary programming and setup procedures. Refer to Control Module References.
17. Center the steering angle sensor. Refer to Steering Wheel Angle Sensor Centering.
READ NEXT:
Brake Pressure Modulator Valve Bracket Replacement
Preliminary Procedure
Electronic Brake and Traction Control Module with Brake Pressure Modulator
Valve
Replacement (2.0L LTG) or Electronic Brake and Traction Control Module with
Brake
Pressure Mod
Description and Operation
ABS DESCRIPTION AND OPERATION
B22 - B22 Brake Pedal Position Sensor
S48E - S48E Multifunction Switch - Center Console
P16 - P16 Instrument Cluster
K9 - K9 Body Control Module
K20 - K20 Engine Control
Disc Brakes
Specifications
FASTENER SPECIFICATIONS
Single Use Non-Threaded Fasteners/Components
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced
with NEW after removal.
DISC BR
SEE MORE:
DTC B1277 (IOB)
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Refer to Diagnostic Procedure Instructions provide an overview of each
diagnostic category.
DTC Descr
Throttle Actuator Control (TAC) System Description
The engine control module (ECM) is the control center for the throttle
actuator control (TAC) system.
The ECM determines the driver's intent based on input from the accelerator pedal
position sensors, then
calculates the appropriate throttle response based on the throttle position
sensors. The
