Question about 2008 Toyota 4Runner

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Red brake light and all 3 yellow lights for brake system came on.

At first were told this was caused by a speed sensor in tire recently changed. That did not work. Now delership says it is a damaged skid control ECU that needs replacing at cost of $1700.00. We want a second opinion ,but not sure where to go. We live in Rensselaer,Indiana

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Whats a skid control???or do you mean the ABS ,if its the ABS then yes its lots of dosh(cash) no quick cut their as its part of the annual vehicle inspection,but if your stateside and only emmissions are checked so far then either ignore the lights by taking the bulbs out,or remove the unit completly and make some new brake pipes up.

Posted on Jan 07, 2009

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there area magnitude of things that can be the issue here. I wil take a chance here and say that there is an issue with a couple of sensors. This situation involves 1. The brake light sensor (which indicates that i brake light bulb is faulty) 2. The Tire pressure sensor (which is the tire pressure) and 3. ABS sensor ( Which i would associate it with a wheel speed sensor)

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Abs light stays on and odometer quit working


Hi!!
When Yellow ABS warning light illuminates during normal operation, the system has detected a problem and has stored a Diagnostic Trouble Code (DTC). Loss of power to module will cause system to be deactivated and Yellow ABS warning light to be illuminated. This fault will not set a DTC.
The Rear Anti-Lock Brake System II (RABS II) Speed Sensor is located on the Rear Differential Case. This sensor sends the speed signal of the rear tires to the RABSII Control Module, which also receives the Turbine Shaft Speed Sensor. The RABSII Control Module uses both signals to control the RABS II Proportioning Valve. If the RABSII Control Module does not receive both signals, the ABS Light will come ON.
Finally, the Sensor I think is giving you trouble. The Turbine Shaft Speed (TSS) Sensor is located on the transmission tail. This sensor sends the speed signal to the PCM which in turn sends it to the Speedometer and to the RABSII Module. If this sensor is disconnected or inoperative, the Speedometer won't work and the ABS light will come ON. Check electrical connector to the sensor, make sure is clean, free of corrosion and properly connected.
Before you replace the sensor, have the computer codes scanned for FREE at AutoZone, Checkers or similar autoparts store.
Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

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I have a 2004 alero with 3 lights on, EFT light, Sevice engine soon, and Anti-brake lights. what does this mean?


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Scan the ABS codes on the car and that will help. Here are some points of failure:
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The ABS codes will help is diagnosing this issue.

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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:
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  • Anti-lock brake control module (ECU)
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The 4-channel anti-lock brake system with traction control and stability assist system consists of the following components:
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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.
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  • 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

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    Ok, check the brake fluid level for a start. This could mean a few things. Your brake pads might be worn down, which would bring a yellow warning light on(triangle), at the same time with the pads being low it will have displaced the fluid, making the level low, this would be a red light on. Now because of this the body control module has detected these faults, will have turned the abs off, hence the abs light.
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    TL

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