Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2004EXPRESS 1500 RWD V8-5.3L VIN TREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLANTILOCK BRAKES / TRACTION CONTROL SYSTEMSELECTRONIC BRAKE CONTROL MODULESERVICE AND REPAIRELECTRONIC BRAKE CONTROL MODULE (EBCM)
2004 Chevrolet Express 1500 RWD V8-5.3L VIN T
Electronic Brake Control Module (EBCM)
2004 Chevrolet Express 1500 RWD V8-5.3L VIN TSECTION Electronic Brake Control Module (EBCM)
Electronic Brake Control Module (EBCM) Replacement (W/o JL4)
Removal Procedure
Important:
After installation, calibrate the new EBCM to the tire size that is appropriate to the vehicle.
1. Disconnect the negative battery cable.
2. Raise and suitably support the vehicle.
Important:
The area around the EHCU MUST be free from loose dirt to prevent contamination of disassembled ABS components.
Thoroughly wash all contaminants from around the EHCU.
3. For cutaway vehicles, remove the splash shield.
4. Disconnect the electrical connectors from the EBCM.
5. Remove the mounting screws that fasten the EBCM (2) to the BPMV (1).
6. Remove the EBCM (2) from the BPMV (1). Removal may require a light amount of force.
7. Clean the BPMV to EBCM mounting surfaces with a clean cloth.
Installation Procedure
1. Important:
Do not use RTV or any other type of sealant on the EBCM gasket or mating surfaces.
Install the EBCM (2) on to the BPMV (1).
2. Notice:
Refer to Fastener Notice in Service Precautions.
Install the screws to the EBCM (2).
^ Tighten the screws to 5 Nm (44 inch lbs.) in an X-pattern.
3. Connect the electrical connectors to the EBCM.
4. For cutaway vehicles, install the splash shield.
^ Tighten the splash shield bolts to 25 Nm (18 ft. lbs.).
5. Lower the vehicle.
6. Connect the negative battery cable.
7. Revise the tire calibration using the Scan Tool Tire Size Calibration function.
8. Verify correct system operation.
Removal Procedure
Important:
After installation, calibrate the new EBCM to the tire size that is appropriate to the vehicle.
1. Disconnect the negative battery cable.
2. Raise and suitably support the vehicle.
Important:
The area around the EHCU MUST be free from loose dirt to prevent contamination of disassembled ABS components.
Thoroughly wash all contaminants from around the EHCU.
3. For cutaway vehicles, remove the splash shield.
4. Disconnect the electrical connectors from the EBCM.
5. Remove the mounting screws that fasten the EBCM (2) to the BPMV (1).
6. Remove the EBCM (2) from the BPMV (1). Removal may require a light amount of force.
7. Clean the BPMV to EBCM mounting surfaces with a clean cloth.
Installation Procedure
1. Important:
Do not use RTV or any other type of sealant on the EBCM gasket or mating surfaces.
Install the EBCM (2) on to the BPMV (1).
2. Notice:
Refer to Fastener Notice in Service Precautions.
Install the screws to the EBCM (2).
^ Tighten the screws to 5 Nm (44 inch lbs.) in an X-pattern.
3. Connect the electrical connectors to the EBCM.
4. For cutaway vehicles, install the splash shield.
^ Tighten the splash shield bolts to 25 Nm (18 ft. lbs.).
5. Lower the vehicle.
6. Connect the negative battery cable.
7. Revise the tire calibration using the Scan Tool Tire Size Calibration function.
8. Verify correct system operation.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.