Question about 2003 Chevrolet Avalanche

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Abs light comes on at startup and stayson

Abs light comes on at startup and stays on

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  • cld111 Apr 23, 2009

    ALREADY CHECKED FLUID LEVEL ,ITS OK

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Check the fluid level of the brake fluid you could have a leak somewhere hope this helps regards Jim

Posted on Apr 23, 2009

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Don't worry about it...I drive a 94 honda prelude and the abs light comes on everyday...If you can drive it and not have it bug you, then don't mess with it. If you know someone who can fix it, or find a source of information that will exactly fix it, then I wouldn't bother with it. It doesn't effect your car, nor will it cause you to not pass inspection.

Posted on Apr 23, 2009

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1 Answer

Brake light and abs light is on


Red lite comes on at startup to ck. system. If amber lite stays on, ck. brake fluid level and see if emergency brake is partly up. This shows problem with anti lock system if it stays on, not main brake system. If all is ok with this but still stays on Have ABS system checked. Haynes repair manual, 95-2003 Windstar, all models.

Mar 24, 2013 | 2003 Ford Windstar

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My abs, brake, esp/bas, and esp/tcs lights all came on at once. Every time I start the car they are off and about thirty seconds into motion they all come on. Brakes seem to be functioning fine. ...


Most likely ou have speed sensor that Is not giving the correct info. At startup the abs does a self check and since the light stays off until you drive it there is no issue with the systems integrity. The light comes on after you start to move because the system is not seeing the info it should be seeing. Your best course of action is to have the abs system scanned for trouble codes. This will help narrow the possibilities. Once you have the codes post them here.

Jun 06, 2012 | 2008 Chrysler Town & Country

1 Answer

ABS light stays on


ABS light comes on with ignition then should go off when you start the car.
If abs sensor does not turn off after disconnecting the battery, then there is a real problem, a faulty sensor or ABS malfunctioning.
When the ABS led comes on immediately after you start the car and stays on usually is one of the relays.
The main one is called surge arrester relay, if it is faulty usually there have been anovervoltage.
There should be two more, usually located behind the black plastic cover of the ABS.
Testing and changing the faulty relay can fix the problem.

If light turns off on startup, and comes back on when you reach some speed, usually you need to check the wheel sensors. You test them unplugging the sensor located behind the wheel and testing it for continuity with a multimeter.
Use Haynes manual to find locations and specs of relays.
Contact a qualified mechanic if you cannot fix it yourself, problems with ABS may compromise safety of the vehicle

Jun 03, 2010 | 2004 Ford Explorer

1 Answer

ABS SYSTEM of my car is always on


If the light is staying on, there is some problem with the system. the light comes on at startup as it soes a selftest. If it stays on, sounds like you will need a code reader to find out what the issue is. Try your local autoparts house. They often have a code reader and will help you diagnose the issue.

Peace,

Feb 28, 2010 | 1994 Mazda 323

1 Answer

98 toyota tacoma abs problem


The ABS and air bags work together on startup untill the lights go out, this is OK.
If the light stays on then you may want
to get checked out.

Sep 08, 2009 | 1998 Toyota Tacoma

1 Answer

Abs light is on


The problem may be that you just have a faulty wheel sensor that is sending false signals to the your on board computer.
You will need to get the ABS computer scanned. Check all fuses first before getting it scanned.

ABS light comes on with ignition then should go off when you start the car.
If abs sensor does not turn off after disconnecting the battery, then there is a real problem, a faulty sensor or ABS malfunctioning.
When the ABS led comes on immediately after you start the car and stays on usually is one of the relays.
The main one is called surge arrester relay, if it is faulty usually there have been anovervoltage.
There should be two more, usually located behind the black plastic cover of the ABS.
Testing and changing the faulty relay can fix the problem.

If light turns off on startup, and comes back on when you reach some speed, usually you need to check the wheel sensors. You test them unplugging the sensor located behind the wheel and testing it for continuity with a multimeter.

Jul 17, 2009 | 2005 Ford Freestar

1 Answer

ABS dash light keeps coming on


Take it to auto parts store an have diagnostic tool hooked up to read codes >

Apr 23, 2017 | 2003 Chevrolet Avalanche

1 Answer

1994 Accord ABS light stays on intermittantly after startup.


ABS went out while racing. I got a replacement from haprecycling for about $150 vs $1000+

just fyi, it's a pain to change. You will need a set of flare wrenchs and crows feet to get it in and out properly. Be VERY careful not to strip or cross thread the gettings.

Jan 10, 2009 | 1997 Honda Accord

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