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 MANUALSBMW1987L7 (E23) L6-3430CC 3.4L SOHC (M30)REPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - BRAKES AND TRACTION CONTROLELECTRONIC BRAKE CONTROL MODULETESTING AND INSPECTIONTEVES - ABS
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)
Teves - ABS
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)SECTION Teves - ABS
35 Position ECU Plug:
For Terminal ID refer to "Brakes and Traction Control : Relays and Modules - Brakes and Traction Control : Electronic Brake Control Module : Diagrams". Diagrams
Voltage Measurements
Grounds
Ignition Switch
Stop Light Switch
ABS Indicator Lamp
Wheel Speed Sensors
Ohms Measurements
Main Hydraulic Valve
Inlet Solenoid Valves
Outlet Solenoid Valves
ABS Main Relay Coil
ABS Main Relay Coil
Grounds
Wheel Speed Sensors
RENDER: 1.0x
NO RELATED
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Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.