Santana 2000GSI equiped MK20-1 ABS,it include ABS controller(electronic control unit,hydraulic unit,hydraulic unit…),four sensors of wheel,ABS trouble light,warning light.Usually,there is a ABS trouble on car that Fluid Pump motor can not work.In this article you will get information about how to fix ABS Fluid Pump Motor trouble.
Symptoms of ABS Fluid Pump Motor trouble:
1.ABS warning light on.
2.ABS can not work.
3.It shows 01276 trouble code in diagnostic tools.
Normally,you need to replace ABS control unit,sometime even ABS controller.It will take you more than hundreds dollars.After disassembling and checking electronic control unit,I found reason which fluid pump motor can’t work caused by is sealing-off between ABS control unit wire connector and unit PCB.This wire connector is connected to fluid pump motor terminal.What you need to do is to use welding gun to make terminal firm.Below I share the way how to diagnose and troubleshoot.
Diagnose:Use X431 to read ABS trouble code,then do below operation for fluid pump control unit and fluid pump motor circuit according to DTCs read in X431.
1.Check fuse S123 30A of fluid pump.
2.Diagnose fluid pump control unit and fluid pump motor by X431.
3.Remove the wire connector between ABS control unit and fluid pump motor.Then provide battery voltage on fluid pump motor to check the motor working status.
After you finish 3 points above,and find fuse S123 is ok and fluid pump motor can not work when you use x431 to diagnose,but the motor work correctly in point.It mean there is problem in electronic control unit and the electronic control unit can not work correctly to control motor.
Solve:
We have solved fluid pump motor trouble in this way on more than twenty car,it work!Hope this article is helpful to you!
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