Question about Volvo V70

2 Answers

Abs light stays on, all others not illuminated as I have reset any OBD codes

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Volvo Expert
  • 412 Answers

ABS is a self monitoring system not part of the OBD 2 system. If there is a light on it indicates a fault is present. Disconnecting the battery will do nothing if there is a hard fault present. Volvo has lots of issues with this. The ABS/Tracs control module has solder joints that go bad in the control module 99% of the time it is the issue. Have the module repaired/replaced. 35 years working Volvo's professionally

Posted on May 01, 2015

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Volvo Master
  • 19,396 Answers

Disconnect battery for 5 mins, this will reset ECU

Posted on Jul 15, 2008

  • Ginko
    Ginko Jul 15, 2008

    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 an
    overvoltage.


    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.

  • Ginko
    Ginko Jul 15, 2008

    I forgot to mention, that also a fault to the ABS computer module can cause same problems, in this case the mechanic replaces the whole ABS module (about $1000).
    Check relays first.


×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Have a hard fault code P0500


According to http://repairpal.com/OBD-II-Code-P0500:

Vehicle Speed Sensor Malfunction
Symptoms
  • Check Engine Light will illuminate
  • Vehicle may not shift properly
  • Speedometer may not operate correctly
  • In some cases, there are no adverse conditions noticed by the driver
  • In some cases, there may be performance problems and/or shifting problems.
  • Other warning lights may come on such as the ABS light and Traction Control light.
Common Problems That Trigger the P0500 Code
  • Defective Vehicle Speed Sensor
  • Defective Speedometer
  • Vehicle Speed Sensor wiring or connector
  • Communication (CAN) bus problems
  • Defective transmission or differential Vehicle Speed Sensor drive gear
Common Misdiagnoses
  • Speedomter problem
  • Internal Transmission problem
  • ABS/Traction Control probelm
  • Driveline problem

Mar 27, 2015 | BMW 325i Cars & Trucks

1 Answer

What could be the reason that yhe sabs airbag light illuminating?


Retrieve your OBD Fault Codes,look them up
& use them, along with factory trouble charts, to
find a problem, through component testing

The air bag is on the SRS System & will be turned OFF

The ABS is the Braking System

Wouldn't use it
Get it fixed

Nov 18, 2014 | 2005 Toyota RunX 160i

1 Answer

ABS system will not communicate with my OBD II ABS scanner tool


You need a separate scan tool for that because they are on separate computers.

Dec 01, 2013 | 2000 Oldsmobile Alero

1 Answer

2004 Ford Explorer ABS, Service Engine Soon lights stay on and the 4x4 light flashes. Why?


Abs is bad sensor in hub bearing,engine light you need obd 2 scanner to read and reset code,

May 11, 2013 | 2004 Ford Explorer

1 Answer

2012 GMC SAvana abs stay on no DTC


Hi there,

In order for the ABS light to remain illuminated (when it shouldn't be), the OBD computer is telling you there is a fault somewhere.

Therefore, the OBD computer MUST trigger DTC's, in order to inform of malfunction.

So, its important you have your codes extracted correctly

Mar 04, 2013 | GMC Savana Cars & Trucks

1 Answer

Esc light and the abs light stay on in my 2007 hyundia santa fe


abs will be abs sensor is in hub bearing.next is the engine code?

Feb 26, 2013 | 2006 Hyundai Sonata

1 Answer

ABS Sensor Light is on


Disconnect negative wire to battery for 5 minutes, reconnect wire. Drive, park vehicle 3 times 5 - 8 miles each time to reset codes also. Many auto parts stores wil test OBD II codes and rest for free.

Jan 28, 2012 | Cars & Trucks

2 Answers

How do i reset an ABS light on a 2001 chevy venture


have you checked for codes and or made a repair?

if the light comes on and stays on as soon as you start the vehicle than the ABS computer has detected a fault. If the fault had corrected itself the light would have turned off by itself. Clearing the codes with the fault still present will not turn off the light.

If you made a repair and the light is still on than it is not fixed.

Let me know which of the two scenarios above you are dealing with and I'll be happy to help you further.

Aug 19, 2011 | Chevrolet Venture Cars & Trucks

2 Answers

What causes abs light to be on


The abs light being on indicates the presence of a fault somewhere in the abs system & the system has been disabled.
Fortunately the design of the system is fail-safe so that your brakes will work just as if you didn't have the abs feature. The only time to be concerned about safety is when the red brake warning lamp illuminates steadily.
There are self-diagnostic capabilities in the abs controller so you could have the memory of that unit readout at a dealer to learn what may be wrong with it. Lot of times it's just a wheel sensor.

Good luck, i hope this helps.

Jun 28, 2011 | 1994 Chrysler LeBaron

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

158 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts

yadayada
yadayada

Level 3 Expert

60541 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21927 Answers

Mark Jones

Level 2 Expert

76 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...