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Toyota Service
Toyota Service, Toyota/Lexus expert
Category: Australia Car
Satisfied Customers: 4762
Experience:  30 + years experience with Toyota products
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I have a 2006 Jeep Grand Cherokee that brakes keeps locking

Customer Question

I have a 2006 Jeep Grand Cherokee that brakes keeps locking up when initially started and trying to drive of. The ABS and a few lights are on the dash. The mechanic replaced wheel speed sensors and is now telling me that I need a clock spring. This part is very expensive. Any workaround?
Submitted: 1 year ago.
Category: Australia Car
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Toyota Service replied 1 year ago.

Hello. Welcome to Just Answer. I see that you have requested a live call; I will attach the necessary screen.

Customer: replied 1 year ago.
Someone please help me?
Expert:  Toyota Service replied 1 year ago.

I can help you via live chat or via phone.

Customer: replied 1 year ago.
Did you see my question?
Expert:  Toyota Service replied 1 year ago.

yes. Do you want to do a phone conversation?

Customer: replied 1 year ago.
How does that work?
Customer: replied 1 year ago.
Are you familiar with the problem I am having?
Expert:  Toyota Service replied 1 year ago.

You click on the phone call icon.

Customer: replied 1 year ago.
Can we just chat?
Expert:  Toyota Service replied 1 year ago.

Sure. What you have here is a severe case of mis-diagnosis. The clock spring has nothing to do with the ABS activating

Customer: replied 1 year ago.
Ok well I was told this by the dealer and another individual
Customer: replied 1 year ago.
They said the clock spring and angle sensor go together
Expert:  Toyota Service replied 1 year ago.

The ABS and the Supplemental Restraint System (the air bags) are two different entities.

Expert:  Toyota Service replied 1 year ago.

If the ABS is activating when you press on the brakes, you have a wheel speed sensor issue, or, you have that what the wheel speed sensor 'reads' as the problem.

Customer: replied 1 year ago.
Have you seen this issue with the wheels locking up. If i put in park then back in drive it tends to stop. But If I turn off and restart the problem starts again., once I get going the problem stops.
Customer: replied 1 year ago.
Well it happens when I initially start and try to drive off
Customer: replied 1 year ago.
He recently changed a speed sensor and now the problem occurs when I turn the steering wheel
Customer: replied 1 year ago.
Any Idea what this may be or what I need to do? I am so stressed out.
Expert:  Toyota Service replied 1 year ago.

We have encountered this issue a lot of times. Sometimes, the device that the sensor reads is cracked. This does not allow the sensor to 'count' the revolutions of the device. The device is a 'toothed gear'. The sensor counts the teeth. If there is a problem, the count is reset and the count begins over. This mimics a zero rpm signal of that wheel, which tells the ABS computer that the wheel is skidding (like braking on ice). The thing to do here is have them do a real-time live-data diagnosis on the wheel speed sensors. This is done with their scan tool. They can read what each of the 4 wheels are doing as the vehicle is driven. If any of the reading change, that is where to look. Just because the vehicle has a speed sensor code does not mean the sensor is bad. Rust between the 'teeth' of the read gear can cause a speed sensor code. I would hate to see you buy a clockspring and the problem still be there. If you have a angle sensor issue, you would have an angle sensor code, and they would not have replaced any wheel speed sensors.

Customer: replied 1 year ago.
Ok, so can you replace an angle sensor without a clock spring?
Customer: replied 1 year ago.
This clock spring is like $800
Expert:  Toyota Service replied 1 year ago.

Depends on the system.

Customer: replied 1 year ago.
They said they come together or something like that
Customer: replied 1 year ago.
Its one system
Customer: replied 1 year ago.
I do not know what to do. Any advice?
Expert:  Toyota Service replied 1 year ago.

I would get another opinion. You need to eliminate any wheel speed sensor causes. It is possible that the angle sensor is bad, but I would want 100% proof before I spent that money on a guess.

Customer: replied 1 year ago.
Anything that I should try or is there a workaround?
Expert:  Toyota Service replied 1 year ago.

No workarounds. Sorry. This needs to be diagnosed properly. You cannot defeat a wheel speed sensor or an angle sensor.