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This normally open electro valve consists of a power coil and a discharge. It is used to modulate braking pressure when wheel tendency to lock is detected by the speed sensor. Vehicles with the EBS system feature two of them to control the front axle. 35805 000821t Compressed air connections 1 Proportional relay power 2 Axle brake cylinder output 3 Discharge 000805t Electrical connections Right wheel 6.1 Positive for discharge coil (ECU X3 pin 1) 6.2 Common negative (ECU X3 pin 3) 6.3 Positive for power coil (ECU X3 pin 2) Left wheel 6.1 Positive for discharge coil (ECU X4 pin 10) 6.2 Common negative (ECU X4 pin 12) 6.3 Positive for power coil (ECU X4 pin 11) PERSPECTIVE VIEW WIRING DIAGRAM III.140 ELECTRONIC SYSTEMS S TRALIS AT/AD Base - January 2003 |