Question about Cars & Trucks
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Posted on Jan 02, 2017
Your ABS systems use a combination of electronic and hydraulic systems to modulate the brakes individually to prevent them from locking up. Antilock systems consist of wheel speed sensors, a hydraulic control unit (HCU), and an electronic control unit (ECU). Because of how complex the system is your computer does a self-test. If the check is successful, the ANTILOCK and BRAKE lights will go out within a few seconds. If one of the component of the ABS system fails to pass the test one or both lights will remain lit. One or both warning lights may also come on while driving, also indicating a problem. If just the ANTILOCK warning light comes on, some ABS component has failed, but the car still has hydraulic brakes. You or a technician will have to perform further testing to pinpoint cause and the proper repair.
Please let me know if this information is helpful. Positive feedback is appreciated. Thank You!
Posted on Mar 30, 2009
It could be that you got some water on your serpentine belt and that will cause it to squeak. Try buying a can of "belt dressing" from an auto store and spray it all over your belt and see if that will stop it. It's a cheap and easy thing to try before replacing expensive parts. Hope this works for you, let me know how it goes. Goodluck!
Posted on May 05, 2009
yes this sounds normal, the ecu is located at the left hand side and when the engine is switched off the noise is the ecu shutting all the componants down.
hope this helps
Posted on Mar 03, 2010
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