Question about 2001 Ford Focus

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Warning lights When driving today,my traction control and abs lights came on indicating a malfunction!There is now an intermitent humming noise and the brake pedal seems to judder on occasions.The 2 lights have since gone off but relight on occasions THE CAR IS A FORD PUMA

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  • romft Jul 27, 2008

    have the same problem abs light on and a scrappig noise checked pads they are ok. discs ok

  • chan97 Dec 07, 2008

    ABS & Tracking Lights on, car consistantly jumps and also has a tendancy to cut out. Have had many visits to the garage, but the problem still persists. I have had both front & back brakes replaced, fixed brake disks, alternator belt, tensioner, water pump, water tank, serviced....however, the problem still persist. Short of selling off the car, as its costing a small fortune to "fix"....what do you suggest?

  • Anonymous Dec 10, 2008

    i have same problem with my ford puma abs and traction control light on what was the problem please

  • Anonymous Mar 27, 2014

    brake pedal judders when braking

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You need to have your brakes inspected by a professional. The lights indicate that ABS and traction control are not working...although brakes will work without these features, a humming noise can indicate more problems to come.

Posted on Jul 09, 2008

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Abs light came on


What it looks like: The traction control warning light typically takes the form of the acronym "TC." Sometimes this light is a small illuminated picture of a car losing control What it looks like: The traction control warning light typically takes the form of the acronym "TC." Sometimes this light is a small illuminated picture of a car losing control. How this system works: Traction control uses wheel speed sensors to detect when one or more of the car's wheels lose grip and traction. When the system registers a loss of traction in one or more of the wheels, a computer will limit power to the wheels that are still in solid contact with the road to prevent a skid. Common reasons for this to happen:
  • ABS is malfunctioning: Traction control and ABS (anti-lock braking system) often share the same control module and internal self-diagnostics system. As a result, sometimes an issue in the ABS can trigger the traction control light. If this is the case, then both the ABS and Traction Control lights will be on.
  • Broken wheel speed sensors: Wheel speed sensors are usually in the wheel bearing assembly, and determine the rate at which each wheel is moving. The sensors relay that information to the traction control module, which determines whether or not power needs to be shifted. Wheel speed sensors can get dirty or damaged and stop working, which prohibits the traction control module from knowing when to enable the system.Traction control module is faulty: The traction control module - which, again, is often shared with the ABS - can malfunction and break altogether, causing the system to stop working. What to expect: A top-rated mobile mechanic will come to your home or office to determine the source and cause of the traction control issue, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs. How important is this service? It's important to have the traction control issue investigated as soon as possible, as adverse driving conditions can arise at any time. While your car is unlikely to incur further damage from a faulty traction control system, it won't be safe to drive in rain, snow, sleet, or other inclement weather, or even possibly through pools of water on the road. Furthermore, the issue that is causing the traction control light to illuminate could also be impacting the ABS.

Sep 30, 2016 | 2006 Pontiac Torrent

1 Answer

Electronic stability control & abs & brake assist warning indicator lights are coming on after an accident. How serious are they?


You have damage to the front area brake system. It could be very serious but if car stops OK most likely not that serious you just won't have abs or traction control. The damage is most likely a speed sensor or something similar. I said it could be serious that is only worst case.
Here is a breakdown of what lights mean
ABS keeps your breaks from locking up
BREAK ASSIST helps your breaks
Traction control if you one wheels spin more than others system adjust wheel spiN

Dec 19, 2015 | Cars & Trucks

1 Answer

My airbag warning light is permanantly on


Cluster warning lights

Whenever this warning light or any other stays on in the dash it is indicating that the systems control module (or the system sensor in the case of lights like low oil pressure, door open indicators etc.) has detected a fault, it then disables the system (this applies to ABS,TCS, TCM, SRS, TPMS, MIL, CEL and BCM faults and others) as long as the light is on. You must now have the dealer hook up a special electronic diagnostic tool and "scan" the system for the fault code that is stored for the problem(s)

Legend of Abbreviations. ABS Anti-lock brake system. TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module. TPMS Tire Pressure Monitor System, MIL Malfunction Indicator Lamp, CEL Check Engine Light.

Dec 20, 2012 | 2007 Chevrolet Lacetti 1.6

1 Answer

2001 Nissan PAthfinder 4-wheel drive malfunctioning'


Whenever this warning light or any other stays on in the dash it is indicating that the systems control module (or the system sensor in the case of lights like low oil pressure, door open indicators etc.) has detected a fault, it then disables the system (this applies to ABS,TCS, TCM, SRS and BCM faults and others) as long as the light is on. You must now have the dealer hook up a special electronic diagnostic tool and "scan" the system for the fault code that is stored for the problem(s)

Legend of Abbreviations. ABS Antilock brake system.TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module

Oct 11, 2012 | 2001 Nissan Pathfinder

1 Answer

I have a 2002 VW New Beetle. The ABS light has come on and there is a chiming beep and the ABS light flickers. What could be the problem?


ABS - Anti-lock 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 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.: 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.
ASR - Acceleration Skid Control system.
When ASR warning light blinking the system is activated itself for car acceleration skid control.

For today's typical high-torque engines, traction control (ASR) can increase both comfort and safety, particularly when driving on slippery roads or surfaces offering differing levels of grip. Traction control permits smooth starting and acceleration through the full speed range without wheel-spin or fishtailing.
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ASR only operates in conjunction with the electronic accelerator (E-gas) and uses components of the anti-lock braking system (ABS). If one wheel suddenly begins to rotate faster than the others (slip), ASR intervenes in the engine management system and reduces power until the wheel stops spinning.
The ASR system represents a further contribution to active safety as it maintains vehicle traction and directional stability throughout the acceleration phase at any speed. In addition, it reduces tyre wear. Activation of the ASR system is indicated by a flashing indicator lamp in the instrument cluster.
The ESP system means the Electronic Stability Program. ESP system includes the ABS system.


Jun 30, 2011 | 2000 Volkswagen Beetle

2 Answers

Abs light stays on and a yellow triangle warnng light


On occasion an ABS light will come on when a brake light is out. So check your brake lights first. Your ABS light is on because there is a malfunction in the ABS system. Is your brake warning light and your ABS warning light both on? This would be an indicator of a major malfunction in the ABS system. Stop driving the vehicle and fix this immemorially. If only your ABS light warning light is on this will not effect normal braking but the ABS system is disabled while the ABS warning light is on. You still need to have it repaired but you still have brakes for the moment. Now the code for this fault will be stored inside the ABS memory module. So you pinpoint this with scanner. Hope this helps

Mar 22, 2011 | Volkswagen New Passat Cars & Trucks

1 Answer

I have a 2003 LS Sport Impala I have relpaced the front wheel bearings twice and have lost the humming noise but still have an issue with the ABS and traction control warning lights being on. I had it...


WHEN YOU PRESS THE BRAKE PEDAL DOES THE PEDAL SEEM TO JUMP? IF SO THE MODULE HAS SEEN A WHEEL SPEED SENSOR MPH DROP SIGNALING A BRAKE LOCK UP . OR LOSS OF WHEEL SPEED , IF THATS THE CASE THE MOST COMMON PROBLEM IS A BROKEN WIRE IN THE VEHICLE HARNESS NEAR THE WHEEL SPEED SENSOR CONNECTOR USUALLY WHERE THE HARNESS MAKES A U TURN UPWARDS .

IS THE ABS LIGHT ON ALL THE TIME ORDOES IT RESET WITH A KEY CYCLE?

FIRST OF ALL THE TRACTION CONTROLL AND THE ABS SYSTEM ARE BASICALLY THE SAME SYSTEM.

THERE SHOULD BE SERVICE CODES FOR THE MALFUNCTIONS , FIRST THING IS TO RETRIEVE ALL ABS CODES THEN MONITOR WHEEL SPEED SENSOR INPUTS WHILE DRIVING

HOPE THIS HELPS

Aug 08, 2010 | 2003 Chevrolet Impala

1 Answer

Problem with my cruise control and ABS light on 03 Explorer


Anti-Lock Control —Vehicles Built After 03/2002 The 3-channel anti-lock brake system consists of the following components:
  • front wheel speed sensors
  • front wheel speed sensor rings
  • hydraulic control unit (HCU)
  • Anti-lock brake control module (ECU)
  • rear wheel speed sensor
  • rear wheel speed sensor rings
  • yellow anti-lock brake warning indicator
The 4-channel anti-lock brake system with traction control and stability assist system consists of the following components:
  • active brake booster with integral solenoid
  • brake booster release switch
  • front wheel speed sensors
  • front wheel speed sensor rings
  • hydraulic control unit (HCU)
  • stability assist module (ECU)
  • stability assist event indicator
  • lateral accelerometer
  • longitudinal accelerometer (4x4)
  • rear wheel speed sensors
  • rear wheel speed sensor rings
  • steering wheel position sensor
  • yaw rate sensor
  • yellow anti-lock brake warning indicator
  • brake pressure transducer
  • traction control switch
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I suspect the abs issue is causing the speed control not to work if it happened at the same time the cruise control stopped working. When the yellow ABS light comes on, it means the ABS is dactivated. You may have a faulty accelerometer which senses acceleration and yaw (side to side lean). I have not seen a bad one but you said it is sensitive to acceleration.
I would unplug it and see what happens. The connector should have a small tab to depress so you can pull the connector out.
Here is where it is:

Accelerometer Removal and Installation
  1. NOTE: The accelerometer is located under the center, rear passenger seat carpet. (I think you have to remove seat for access).
    Cut the carpeting along the perforations.
  1. Disconnect the electrical connector.
  1. Remove the nuts and remove the accelerometer.
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Have dealer hook up tester and pull fault codes if you can't find an easy solution.
Some background info
  • A malfunction in the anti-lock brake system will cause the anti-lock brake control module to shut off or inhibit the system. However, normal power-assisted braking remains.
  • Malfunctions are indicated by the yellow ABS warning indicator in the instrument cluster.
  • The anti-lock brake system is self-monitoring. When the ignition switch is turned to the RUN position, the anti-lock brake control module will carry out a preliminary self-check on the anti-lock electrical system indicated by a three-second illumination of the yellow ABS warning indicator in the instrument cluster.
  • During vehicle operation, including normal and anti-lock braking, the anti-lock brake control module monitors all electrical anti-lock functions and some hydraulic operations.
  • Each time the vehicle is driven, as soon as vehicle speed reaches approximately 20 km/h (12mph), the anti-lock brake control module turns on the pump motor for approximately one-half second. At this time, a mechanical noise may be heard. This is a normal function of the self-check by the anti-lock brake control module.
  • Pedal pulsation coupled with noise while braking on loose gravel, bumps, wet or snowy roads is normal and indicates correct functioning of the anti-lock brake system.
  • Warning Lamp Indicator
    The anti-lock brake system (ABS) uses the yellow ABS warning indicator to alert the driver of a malfunctions in the ABS.
    The yellow ABS warning indicator will come on to warn the driver that the ABS has been turned off due to a symptom that exists in the ABS. Normal power assist braking remains but wheels can lock during a panic stop while the yellow ABS warning indicator is illuminated.

    -----------------------------------------
    Please report back, I am curious if that is what it is. Good luck

    Mar 03, 2009 | 2003 Ford Explorer

    1 Answer

    I have a 2001 hyundai elantra and the warning lights on the dashboard. I know what the oil light looks like and the airbags. What are the other two lights.


    Your best bet is to go HERE and signup for a free account then Downloading your Manual - service sheets, diagrams, parts lists etc.
    Hyundai is one of the best with providing their customers with free information about the vehicles!!

    I have D/L the manual, and the warning lamps on the instrument cluster are...
    Left to right...(starting under temp. Gauge)

    WITHOUT TRIP COMPUTER
    11. Traction Control Indicator Light (If installed)

    12. ABS Warning Light (If installed)

    13. Seat Belt Warning Light

    14. Oil Pressure Warning Light

    15. Charging System Warning Light

    16. Parking Brake/Brake Fluid Level Warning
    Light

    17. Malfunction Indicator Light (MIL)

    18. SRS (Airbag) Warning Light

    19. Trip Odometer/Odometer

    20. Trip Odometer Reset Knob

    21. Low Fuel Warning Light

    WITH TRIP COMPUTER

    7. Front Fog Indicator Light (If installed)

    8. Door Ajar Warning Light

    9. Trunk Lid Open Warning Light

    10. Parking Brake/Brake Fluid Level Warning
    Light

    11. Malfunction Indicator Light (MIL)

    12. Charging System Warning Light

    13. Oil Pressure Warning Light

    14. SRS (Airbag) Warning Light

    15. Cruise Indicator Light (If installed)

    16. Seat Belt Warning Light

    17. ABS Warning Light (If installed)

    18. Traction Control Indicator Light (If installed)

    19. Automatic Transaxle Position Indicator Light
    (Auto T/A only)

    22. Low Fuel Warning Light


    Thanks for using FixYa - a FixYa rating is appreciated!!

    Feb 21, 2009 | 2001 Hyundai Elantra

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