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Home >> Audi >> 1989 >> 90 L5-2309cc 2.3L SOHC (NG) >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Brakes and Traction Control >> Electronic Brake Control Module >> Testing and Inspection
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Electronic Brake Control Module: Testing and Inspection



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". Connector Views

Voltage Measurements




Grounds




Ignition Switch




Overvoltage Protection Relay




Alternator Monitor Input




Pump Motor Relay




Solenoid Valve Relay




Brake Switch




ABS Indicator Lamp




Wheel Speed Sensors

Ohms Measurements




Grounds




Wheel Speed Sensors




Solenoid Valves

* Only if the system does not use an over voltage protection relay.



** Vehicle specific see chart for details.
In the last column the number of solenoid valves in a system are listed. If there are only three valves listed it means there isn't a right rear valve and therefore no wire in Pin 19. If a wire exists in Pin 19 it will mean the system has four solenoid valves.
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