Question about 2003 Toyota Avalon

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Abs, brake and battery indicator lights all come on together and blower fan goes to high speed when accelerating

All returns to normal when gas pedal is released

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  • Toyota Master
  • 803 Answers

Possible alternator failing. Have charging system checked.

Posted on Dec 28, 2013

  • RJP
    RJP Dec 28, 2013

    Thank You, will do !

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Idle surges after warm up and when brake pedal is pressed

1990 22re same problem surge when pedal was depressed thought it was booster or check valve still didnt fix it i even put a brand new booster on it just to make sure still no fix it finnally went away on its own for about a month now it does it just sitting at an idle with out the brake pedal depressed traced all vaccum lines no problem there and still have no clue

Posted on Feb 21, 2009

  • 65 Answers

SOURCE: FAN BLOWER VERY LOUD ON HIGH

HI!!! open the fan conpartment pull the fan out and see how it works maybe wobless when spin the bearing from the fan worn out o something is inside the.fan compartment?????

Posted on Feb 26, 2009

  • 201 Answers

SOURCE: 1993 toyota landcruiser brake problem

sounds like vacuum brake booster diaphram has failed. its behind master cylinder and probably needs replacing.

Posted on May 08, 2009

  • 72 Answers

SOURCE: turn signal light comes on when braking

Probably a bad grounding, causing the current to go other ways than intended i.e through other lamps. Check for corroded lamp sockets or bad ground connections in the tail light assembly, also check the lamps so they are ok.

Good luck!

Posted on May 22, 2009

OneRide
  • 379 Answers

SOURCE: brakes feel spongy.when pressed hard goes nearly

Either you did not bleed the brakes properly or they need adjusted. (rear only) Front most likely are disks. If you put pads on the front and spread the caliper pistons, you should pump the brake pedal 10 or 15 times to move the pistons out. Some ABS systems are notoriously hard to bleed.

Posted on Jun 30, 2009

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1 Answer

Vacuum brake booster toyota sequoia 1984. Brake Dealer completed diagnostic test showing codes C1223,1247,and 1310. Conclusion the booster needs replacement. Must I? (about $1,000). Safety issue???


Toyota Sequoia's had a lot of problems abs wise> #1 clear codes with a factory software scanner. then drive it to see what returns. I can not see a brake booster setting 3 codes that are ABS/VSC problems #2 how does the brake pedal feel If it is high and hard pedal then the booster is bad if the engine speeds rise as pedal is depress and you hear escaping air the booster is bad. #3 ABS/VSC are supplemental systems to the normal braking soit will take longer to stop and a possible skid could occur. but you will stop leave more traveling space you should be fine.

May 07, 2014 | Toyota Cars & Trucks

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Abs actuator toyota


Remove the front wheels and inspect the ABS connector wires that run above the control arm. Chances are you will find that these wires are damaged.The ABS is in or around the wheel bearing and there is a clip that can be gently pried back to remove the ABS plug from the Wheel bearing sensor or the external sensor in that area.
Sometimes a faulty alternator will light up the ABS sensor light. Check to see if the vehicle is charging when this light is on., typical voltages while the car is on should be around 12.5 to 14 volts. You can test it right at the battery while the car is running.
Sometimes an alternator will only go faulty once the component inside get hot.
Typically the wires to the Wheel Hub sensor goes bad from exposure to the elements, especially snow and ice climates or rocks and dirt-roads a lot or if you go through bushes a lot.

Jan 21, 2014 | Toyota Corolla Cars & Trucks

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1998 Dodge Stratus 2.4l bogs down suddenly while at cruising speed


You need to get the engine trouble codes by performing the "keydance" or using a code reader, then start checking fuel pressure at pump and regulator. Best luck. Amclaussen.

Feb 27, 2013 | 1998 Dodge Stratus

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I have an Audi a4 2001 1.8t and the asr light its flashing, thanks for your help my name is Marcos Aguilar


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.
tdisline_338.jpg


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. If the ESP lights on the dashboard permanently the ESP system is faulty. You must access the ESP 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 ESP ECU, in other words reset the ESP system and turn off the warning lamp on dashboard.


Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you might access the ABS ECU (Electronic Control Unit) using diagnostic equipment (VAS, VAG-Com, or similar) connected to the data link connector of the car, in order to pull out all DTC's (Diagnostic Trouble Code) memored. Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC's stocked inside ABS ECU & reset it.


Good Luck!

Sep 07, 2011 | 2001 Audi A4

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.
tdisline_703.jpg


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

1 Answer

I have to push very hard on the brakes to come to coplete stop. The master cylinder is fine and the brakes have been bled at the calipers. I have heard There is another place to bleed the brakes. Where...


CHECK POWER BRAKE BOOSTER.WITH ENGINE OFF.DEPRESS BRAKE PEDAL SHOULD BE FIRM.NOW START THE ENGINE BRAKE PEDAL SHOULD DROP A LITTLE AND HOLD IF BRAKE GOES TO THE FLOOR POWER BOOSTER COULD BE BAD.I STILL SAY YOU HAVE AIR IN BRAKE SYSTEM.YOU NEED TO BENCH BLEED BRAKE MASTERCYLINDER AND BLEED FRONT CALIPERS AND REAR BRAKE CALIPERS. BY YOUR CAR BEING ABS BRAKES SYSTEM BEST TO LET DEALERSHIP FIX BRAKES. THEY HAVE TO USE DIAGNOSTIC EQUIPMENT TO RESET ABS BRAKE HYDRALIC CONTROL UNIT AND PRESSURE BLEED THE BRAKE SYSTEM. IF BLOWER MOTOR KEEP RUNNING YOU HAVE FAULTY BLOWER MOTOR RELAY.IF BLOWER MOTOR HAS ONE SPEED CONTROL.YOUR BLOWER MOTOR RESISTOR BAD OR AC AND HEATER CONTROL SWITCH IS BAD.

May 13, 2011 | 1998 Dodge Intrepid

1 Answer

ABS brake module sounds like a motor running and won't stop unless battery is disconnected. what is fix?


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
  1. Verify the customer concern by carrying out the Drive Cycle Test.
  1. Visually inspect for obvious signs of mechanical and electrical damage.


Visual Inspection Chart Mechanical Electrical
  • Parking brake cable
  • Tire pressure
  • Tire size or mismatched tires
  • Blown fuse
  • Central junction box (CJB):
    • fuse 23 (10A)
  • Battery junction box
    • fuse 102 (50A)
  • Connectors or connections
  • Ground integrity
  • Harness routing
  • Wire chafing
  • Circuitry open/shorted

-----------------------------------------------------------------------
Anti-Lock Control The four-wheel anti-lock brake system (4WABS) consists of the following components:
  • Anti-lock brake control module (2C265)
  • Front anti-lock brake sensor (2C204)
  • Front anti-lock brake sensor indicator (2C182)
  • Hydraulic control unit (2C219)
  • Rear anti-lock brake sensor (2C190)
  • Rear anti-lock brake sensor indicator (2C189)
  • Yellow ABS warning indicator

May 07, 2009 | 2000 Ford Expedition

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
---------------------------------------------------------------------
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.

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

    Mar 03, 2009 | 2003 Ford Explorer

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