Town & Country V6-3.8L VIN L (2006)
Fig. 13 Traction Control Hydraulic Circuit
The hydraulic diagram (Fig. 13) shows the vehicle in the ABS braking mode. The diagram shows a drive wheel is spinning and brake pressure is
required to reduce its speed.
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The normally open ASR valve is energized to isolate the brake fluid being pumped from the master cylinder and to isolate the driven wheel.
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The normally open ASR valve bypasses the pump output back to the master cylinder at a fixed pressure setting.
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The normally open and normally closed valves modulate (build/decay) the brake pressure as required to the spinning wheel.
HYDRAULIC CIRCUITS AND VALVES - MK25E
NOTE: The following applies for MK25e ABS only.
The hydraulic fluid control valves within the HCU control the flow of pressurized brake fluid to the wheel brakes during the different modes of ABS
braking and traction control. The following paragraphs explain how this works. For purposes of explanation only, the following diagrams show only
one hydraulic circuit, the Right Front wheel braking circuit.
NORMAL BRAKING HYDRAULIC CIRCUIT AND SOLENOID VALVE FUNCTION (ABS WITHOUT TRACTION CONTROL)