I would pull the fuse for the ABS hydraulic pump and then put it back in and see what happens. Don't ever recall a pump running. Dealer may need to hook up scan tool for diagnostic fault codes, DTCs.
Principles of Operation
The ABS control module receives wheel speed readings from both front wheel speed sensors and the rear differential speed sensor, and processes this information to determine if an ABS event is necessary. The wheel speed sensor electrically senses each tooth of the ABS sensor indicators as it passes through the wheel speed sensor's magnetic field.
The ABS control module continuously monitors and compares the rotational speed of each wheel speed sensor indicator and, when it detects an impending wheel lock, modulates brake pressure to the appropriate brake caliper(s). This is accomplished by triggering the hydraulic control unit (HCU) to open and close the appropriate solenoid valves. Once the affected wheel returns to normal speed, the ABS control module returns the solenoid valves to their normal position, and normal (base) braking resumes.
The ABS control module is self-monitoring. When the ignition switch is turned to the RUN position, the ABS control module will do a preliminary electrical check, and at approximately 20 km/h (12 mph), the pump motor is turned on for approximately one-half second. Any malfunction of the ABS system will cause the ABS to shut off; normal power assisted braking, however, remains.
Inspection and Verification — Scan Tool Communications Check
Visual Inspection Chart
Mechanical
Electrical
-----------------------------------------------------------------------
Anti-Lock Control
The four-wheel anti-lock brake system (4WABS) consists of the following components:
SOURCE: abs and brake,battery lights won,t turn off .
I have the same van with similar problems. I had a small leak from the lower left corner of the windshield that dripped down into my fuse box when we had a heavy rain. My defrost light and dome lights got stuck on. We had to remove the fuses and let the box dry out. We had to take it to someone to find the leak and caulk the windshield. I don't know if this might help but you might look into this????? Good luck.
SOURCE: Speedometer, RPM, ABS, and Brake light
Assalamualykum.
Bro I had the same problem and the car is under repair now.
Check three points. 1) FUSES 2) ABS MUDULATOR 3) SPEED SENSOR
In most case it is the ABS MODULATOR, due to heating.
SOURCE: Where is the abs control module located on a 02 chevy avalanche ?
THE EBCM IS BAD this is the electronic control module that is on abs pump. you can replace seperate I think it is around 500 for part
SOURCE: bad brakes on gmc suburban,
Gravity bleed your brakes starting at the wheel farthest from the master cylinder. No pweddle pumping. I Fill M/C and leave cover off. Then open the bleeder and watch what is coming out. Uou can see bubbles. When the fluid drips steady and without bubbles, cole and do the same to the other three. Don't let the master cykinder get low because thr fluid level helps move the fluid and air through the lines.Periodically tap the break lone with your wrench to keep everything moving.. When sll bleeders drip clean and steady. Make sore your rear brakes are adjusted to barely touch the drum. Then top off the master cylinder, cap it and give yourself a "break". :)
SOURCE: 1999 Saturn SC2. ABS and brake light stay on.
need to have system checked to get a trouble code 1st
5,177 views
Usually answered in minutes!
×