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 MANUALSCHEVROLET1993SUBURBAN 3/4 TON 2WD V8-454 7.4LREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - BRAKES AND TRACTION CONTROLELECTRONIC BRAKE CONTROL MODULESERVICE AND REPAIR
1993 Chevrolet Suburban 3/4 Ton 2WD V8-454 7.4L
Electronic Brake Control Module: Service and Repair
1993 Chevrolet Suburban 3/4 Ton 2WD V8-454 7.4LSECTION Service and Repair
Electronic Brake Control Module And Antilock Pressure Valve:
REMOVAL
CAUTION: Do not touch the electrical connections and pins or allow them to come in contact with brake fluid as this will damage the Electronic Brake Control Module (EBCM).
1. Remove electrical connectors.
2. Remove EBCM by prying the tab at the rear if the module and pulling it toward the front of the vehicle.
INSTALLATION
WARNING: Be sure to use the correct EBCM for the system being serviced. The 3500 HD uses the Zero Pressure Rear Wheel Anti Lock (ZPRWAL)EBCM with the gray electrical connector. All other models use the Rear Wheel Anti Lock (RWAL) EBCM with the black electrical connector. Failure to use the correct EBCM will result in a system malfunction.
1. Install EBCM.
- Slide it into the bracket until the tab locks in the hole.
NOTE: If there is brake fluid on the connectors, clean them with water followed by denatured alcohol.
2. Install electrical connectors.
RENDER: 1.0x
NO RELATED
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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.