Abs Traction Control Hydraulic Circuit, Solenoid Valve, And Shuttle Valve Function (Abs With Traction Control)
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
The hydraulic diagram shows the vehicle in the traction control (TC) mode. The diagram shows a drive wheel is spinning and brake pressure is required to reduce its speed. See Fig 1.
- The normally open TC (ASR) valve is energized to isolate the brake fluid being pumped from the master cylinder and to isolate the driven wheel.
- The normally open TC (ASR) valve bypasses the pump output back to the master cylinder at a fixed pressure setting.
- The normally open and normally closed valves modulate (build/decay) the brake pressure as required to the spinning wheel.
| 1 - OUTLET VALVE |
| 2 - PUMP PISTON |
| 3 - PUMP MOTOR (ON) |
| 4 - LOW PRESSURE ACCUMULATOR PRESSURE |
| 5 - LOW PRESSURE ACCUMULATOR |
| 6 - NORMALLY CLOSED VALVE (MODULATING) |
| 7 - TO RIGHT FRONT WHEEL (SPINNING) |
| 8 - NORMALLY OPEN VALVE (MODULATING) |
| 9 - NORMALLY OPEN TC (ASR) VALVE ON (REGULATING) |
| 10 - FROM MASTER CYLINDER |
| 11 - HYDRAULIC SHUTTLE VALVE |
| 12 - CONTROLLED WHEEL PRESSURE |
| 13 - SUCTION VALVE |
| 14 - PUMP INTERSTAGE PRESSURE |
| 15 - NOISE DAMPER CHAMBER |
| 16 - MASTER CYLINDER PRESSURE |
| 17 - PUMP PRESSURE |