Location abs module ebcm - 2002 Buick Regal

Back side of the frame it says.

https://www.chevyavalanchefanclub.com/cafcna/index.php?threads/ebcm-abs-module-replacement-and-tips.121523/

and there is a video as well

https://www.google.com/search?q=2004+Chevy+Avalanche+ABS+module+location

..

Electronic Brake Control Module Replacement

Removal Procedure

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1. Turn OFF the ignition.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
3. Remove the left front wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
4. Remove the left front wheelhouse extension. Refer to Fascia Extension Replacement - Front in Bumpers.
Important The area around the electronic brake control module (EBCM) must be free from loose dirt to prevent contamination of disassembled ABS components.

5. Thoroughly wash all contaminants from around the EBCM.
6. Rotate the EBCM connector tab up to the unlocked position.
7. Remove the EBCM connector position assurance (2) from the EBCM electrical connector (1).
Caution! To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.

8. Disconnect the EBCM electrical connector (1) from the EBCM (4).


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9. Disconnect the brake pressure modulator valve (BPMV) electrical connector (2) from the EBCM (3).


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10. Remove the 6 EBCM to BPMV screws (2).


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11. Clean the surface of the EBCM/BPMV assembly.
Important The EBCM cannot be repaired. If faulty, the unit must be replaced.

12. Separate the EBCM (2) from the BPMV (1).

The above procedure is removal. Usually the code won't tell you what to replace. I don't know what testing you have done? Just reading the code might not be enough? The main reason I posted is to give you the location of module. Proper diagnostics is up to you. I hate to see you replace something and it not fix the problem. This is just my opinion.

ABS code not check engine light code .
DTC C0201 00: Antilock Brake System (ABS) Enable Relay Contact Circuit
The solenoid relay, located within the electronic brake control module (EBCM), supplies battery voltage to all of the valve solenoids.
Circuit/System Verification
With scan tool installed, clear the DTCs then drive the vehicle in a straight line at a speed greater than 20 km/h (13 mph). If the DTC did not set as a current DTC see diagnostic aids.
Circuit/System Testing
Test for an open or a short to ground in the battery positive voltage circuit to the EBCM. Verify no open or a short to ground is found.
Test the EBCM ground circuit, an open or high resistance.
? If an open or a short to ground is found, repair the circuit.
Replace the EBCM assembly.

DTC C0201 (Equal to or over 8600 GVW)
The system relay, located within the electronic brake control module (EBCM), supplies battery voltage to all of the valve solenoids and to the Antilock Brake System (ABS) pump motor. When the relay contacts close, the EBCM monitors the voltage supplied to the valve solenoids and compares this voltage to monitored ignition voltage.
Action Taken When the DTC Sets
• The EBCM disables the ABS/DRP.
• The ABS indicator turns ON.
• The brake warning indicator turns ON

If the light is on there are DTC'S - diagnostic trouble code's stored in ABS - anti - lock brakes computer . Have codes checked first , something wrong with electrical part of antilock brakes , I know, what does ABS have to do with traction control ! traction control is a function of the ABS control module . Leaking shocks ? clarify , air shocks etc.... Before you start guessing , have it check for codes .
This vehicle is equipped with the TRW 440 V antilock braking system.
The vehicle is equipped with the following braking systems:
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Antilock Brake System (ABS)

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Engine Drag Control (EDC)

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Dynamic Rear Proportioning (DRP)

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Traction Control System (TCS)

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Vehicle Stability Enhancement System (VSES) (w/JL4)

The following components are involved in the operation of the above systems:
?€¢
Electronic brake control module (EBCM)--The EBCM controls the system functions and detects failures.

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Electronic brake control module (EBCM)--The EBCM controls the system functions and detects failures.

The EBCM contains the following components:

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System relay--The system relay is energized when the ignition is ON and no ABS DTCs are present. It supplies battery positive voltage to the solenoid valves and pump motor.

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Vent tube--The vent tube, located in the EBCM connector, is an opening to the internal cavity of the EBCM. It allows ventilation of the EBCM internals.

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Brake pressure modulator valve (BPMV)--The BPMV contains the hydraulic valves and pump motor that are controlled electrically by the EBCM. The BPMV uses a 4 circuit configuration with a diagonal split. The BPMV directs fluid from the reservoir of the master cylinder to the left front and right rear wheels and fluid from the other reservoir to the right front and left rear wheels. The diagonal circuits are hydraulically isolated so that a leak or malfunction in one circuit will allow continued braking ability on the other.

Important: There is a rubber isolator located under the BPMV and on the mounting studs. The rubber isolators protect the BPMV and the EBCM from vehicle vibrations.

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The BPMV contains the following components:

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Pump motor

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Inlet valves (one per wheel)

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Outlet valves (one per wheel)

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Master cylinder isolation valves (one per drive wheel)

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Prime valves (one per drive wheel)

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Wheel speed sensors (WSS)--As the wheel spins, the wheel speed sensor produces an AC signal. The EBCM uses this AC signal to calculate wheel speed. The wheel speed sensors are replaceable only as part of the wheel hub and bearing assemblies.

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Traction control switch--The TCS is manually disabled or enabled using the traction control switch.

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Stoplamp switch--The EBCM uses the stoplamp switch as an indication that the brake pedal is applied.

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Lateral accelerometer sensor (w/JL4)--The EBCM uses the lateral accelerometer sensor as an indication of the lateral acceleration of the vehicle.

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Yaw rate sensor (w/JL4)--The EBCM uses the yaw rate sensor as an indication of the yaw rate of the vehicle.

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Steering wheel position sensor (SWPS) (w/JL4)--The EBCM uses the SWPS as an indication of the position and rotation of the steering wheel.

This systems are very complex , your best bet would be to take it to a qualified repair shop .

This vehicle is equipped with the BOSCH 5.3 antilock braking system.
The vehicle is equipped with the following braking systems:
• Antilock Brake System (ABS)
• Dynamic Rear Proportioning (DRP)
• Traction Control System (ETS) (w/NW7)
• Traction Control System (TCS) (w/NW9)
• Vehicle stability enhancement system (VSES) You need to have vehicle checked for DTC'S diagnostic trouble codes , do you know what they are ? The traction control , ABS an stability control are all a function of the electronic brake control system .It also seams the power steering is controlled by the Antilock brake system.The Magnasteer® is controlled through the ABS module and varies the torque by adjusting the current flow through the actuator.
Your best place to start would be to have ABS module scanned for DTC'S . Codes would point you in right diagnostic direction .
The following components are involved in the operation of the above systems:
• Electronic Brake Control Module (EBCM), The EBCM controls the system functions and detects failures.
The EBCM contains the following components:
- System Relay, The system relay is energized when the ignition is ON and no ABS DTCs are present. It supplies battery positive voltage to the solenoid valves and pump motor.
- Vent Tube, The vent tube, located in the EBCM, is an opening to the internal cavity of the EBCM. It allows ventilation of the EBCM internals.
• Brake Pressure Modulator Valve (BPMV), The BPMV contains the hydraulic valves and pump motor that are controlled electrically by the EBCM. The BPMV uses a 4 circuit configuration with a diagonal split. The BPMV directs fluid from the reservoir of the master cylinder to the left front and right rear wheels and fluid from the other reservoir to the right front and left rear wheels. The diagonal circuits are hydraulically isolated so that a leak or malfunction in one circuit will allow continued braking ability on the other.

In the under hood fuse/relay box.

ETC / ECM - 15amp

ABS - 60amp

SEO B2 30 amp

no B+ at any of these fuse's check Ignition 1 relay .


This vehicle is equipped with the Bosch 5.3 antilock braking system.



The vehicle is equipped with the following braking systems:







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Antilock Brake System (ABS)














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Dynamic Rear Proportioning (DRP)















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Traction Control System TC2 (w/NW9)








The following components are involved in the operation of the above systems:







?€¢





Electronic Brake Control Module (EBCM) - The EBCM controls the system functions and detects failures.

















The EBCM contains the following components:
















-





System Relay - The system relay is energized when the ignition is ON and no ABS DTCs are present. It supplies battery positive voltage to the solenoid valves and pump motor.
















-





Vent Tube - The vent tube, located in the EBCM connector, is an opening to the internal cavity of the EBCM. It allows ventilation of the EBCM internals.















?€¢





Brake Pressure Modulator Valve (BPMV) - The BPMV contains the hydraulic valves and pump motor that are controlled electrically by the EBCM. The vehicle is equipped with traction control The BPMV uses a 4 circuit configuration with a front/rear split. The BPMV directs fluid from the reservoir of the master cylinder to the front wheels and fluid from the other reservoir to the rear wheels. The circuits are hydraulically isolated so that a leak or malfunction in one circuit will allow continued braking ability on the other.

The ABS EBCM anti-lock brake module is failing causing problems with the ABS pump running constantly, also will drain your battery.

1. Remove the ABS fuse to prevent ABS motor burn out.
2. You can still drive your vehicle with the module removed.
3. We recommend covering the exposed surface of the hydraulic control unit with aluminum foil to keep out water and dirt.

Common Failures:

• ABS Pump Always Running
• Codes: C0265, C0267, C0268
• Pump Motor Circuit trouble code
• Power Relay trouble code
• Valve Relay Trouble code
• Dump Valves (solenoids) trouble codes
• No Communication
• Intermediate power loss

http://www.myairbags.com/dtc-code-c0265-abs-ebcm-light/

{: ) The ABS/TCS module (or the Electronic Brake Control Module- EBCM ) is located at the front left lower corner of the engine compartment, under the air cleaner housing. The EBCM is attached to the brake pressure modulator valve. See sample diagram:


1. secondary air injection
2. Electronic Brake Control Module
3. brake pressure modulator valve

The EBCM (Electronic Brake Control Module) is mounted to the BPMV (Brake Pressure Modulator Valve) located at the left front (lower) engine compartment.

EBCM Removal & Installation Procedure

1. Remove the Brake Pressure Modulator Valve (BPMV). Refer to the Hydraulic Control Unit (BPMV) procedure in this section.
   
2. Remove the 4 T-25 Torx® bolts (1) from the EBCM (2). (click image for zoom)
   
   
   Fig. Bolts (1), EBCM (2), bracket (3), bolts (4) and BPMV (5) (click image for zoom)
   
   
3. Disconnect the 2-way ABS pump motor connector.
   WARNING Do not use a tool to pry the EBCM or the BPMV. Excessive force will damage the EBCM.
   
4. Remove the EBCM (2) from the BPMV (5). Removal may require a light amount of force.
   1. Do not reuse the EBCM mounting bolts. Always install new bolts.
5. Clean the EBCM to BPMV mounting surfaces with a clean cloth.

To install:

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

1. Install EBCM (2) onto BPMV (5).
   
2. Install the 4 EBCM bolts (1).
   1. Tighten the 4 bolts to 39 inch lbs. (5 Nm) in an X-pattern.
3. Connect the 2-way ABS pump motor connector to the EBCM.
   
4. Revise the tire calibration using the Scan Tool Tire Size Calibration function.
   
5. Use the scan tool to check and clear DTC memory.

Hope this helps.

Unfortunately the ABS relay is built into the EBCM. Electronic Brake Control Module. That is located on the frame rail, left side of vehicle and sits on top of the pump. Both parts are likely to be replaced together as getting the module off the pump can be difficult. I recommend a repair facility do this job but it can be done at home. You will likely need to take loose metal brake lines and that can be quite a task also.
Are you getting a code for the relay / EBCM?

Good luck
Please rate my answers if they helped.
Brett