Does this mean i need to change the pump and the ecu or just one part? Also do you know if there is only a few numbers that need to be matched to obatin another pump? (Mine has 10 numbers on, but do they all need to match up exactly?)
Heya u should just need to change the abs pump.....u might not even need to change it as these faults just happen for no reason other than a dirty sensor..... ur ecu ye you dnt need to change try ur brake pads first start wit the cheapest and work ur way through the brakeing system b4 buying any parts hope it helps
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It means you have one of two faults... either: 1) one or more of the wheel speed sensors is bad or 2) the ABS module is bad.
The sensors can be checked using a simple multimeter and the procedure in the Haynes manual for you car. The ABS module can be exchanged with a rebuilt one for about $120. New ones cost a small fortune. Search on-line for ABS module rebuilders, if the sensors are good. Your best bet is t go to Autozone and ask them to put a fault code reader on your car and write down the codes for us. I've been told it's a free service. Remember, if you change the ABS module, it will function just fine, but will have a instrument cluster fault until the new module is programmed into the ECM (ECU) by someone who has the factory computer link to do it for you. Most places charge from $25 to $50 to do this.
the ecu controls the power to the pump and injectors. are you getting error on every test on reader that can be the ignition relay. its in the dash when you turn the key should hear it go click click. if just one click then one side of it has gone. there is the low volt side, ignition interior dash lights etc. high volts is ecu abs, air bags. etc. low volts go to the abs and ecu but when engine started it needs the high volts to be there to run.
Hello you are looking at, the abs control pump. It`s very rarely the pump failing, but probably a wheel censor that must be changed.There is one for each wheel. When this problem occur, the abs system is malfunctioning, because the resistance in the censor is changed, and the system can`t find it`s normal function. Basicly it`s hard to determin what exact cencor is failing, and only BMW can find the problem, because the system ecu has to be set to reset to default. when the fault is repaired. The car could be dangerous to drive in, because the abs system and the anti skid, esp, etc, is not working before the fault is repaired.
The repair is not that expensive, but an unautoriced repair shop, with speciality in bmw, is always cheaper, try to find a shop you can trust and with a good repair history.
The ESP system means the Electronic Stability Program. If the ESP lights on the dashboard permanently the ESP system is faulty. You should access the ESP Electronic Control Unit (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: brake pedal switch, front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ESP ECU, in other words reset the ESP system and turn off the warning lamp on dashboard.
Check & replace if necessary the brake pedal switch placed above pedals on the support. If the problem still occurs you should access the ABS & ESP ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored. Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC stocked inside ABS & ESP ECU, and reset it.
The ABS system means the Antilock Brake System. If the ABS lights on the dashboard permanently the ABS system is faulty. You must access the ABS Electronic Control Unit (ECU) memory to pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ABS ECU, in other words reset the ABS system and turn off the warning lamp on dashboard.
i know this may sound strange but remove the brake fluid cap. on the cap is a sensor, do this away from any other vehicle and yours and shack the sensor by the cap a good few times. as fast as you can. then re fit the sensor see if the lights go off. sometimes it works sometimes not. this just because the brake light is on, this only usually comes on when the sensor thinks there is low brake fluid. and it can also tell the abs as well. and this is why both the lights are on. also make sure the fluid is at full markings.