Toyota

Have Toyota Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Toyota

Toyota Sienna I have a 2004 Sienna. When slip light indicator

Customer Question
I have a 2004 Sienna...
I have a 2004 Sienna. When slip light indicator comes on, it reduces the vehicle speed, produces alarming sound and I have to apply the brake abruptly. This happens four times as I drove around the block. The vehicle is unsafe to drive if this keeps happening. What causes the slip indicator light to come ON?
Submitted: 6 years ago.Category: Toyota
Show More
Show Less
Ask Your Own Toyota Question
Answered in 2 hours by:
3/24/2011
Toyota Mechanic: Boxer54, Toyota Technician replied 6 years ago
Boxer54
Boxer54, Toyota Technician
Category: Toyota
Satisfied Customers: 1,758
Experience: ASE Master tech with L1 certification, Toyota Master Diagnostic Technician
Verified
Thank you for trusting Just Answer with your Toyota question. The slip indicator comes on when the ABS computer determines that a wheel is slipping. There are speed sensors at each wheel and the computer takes corrective action if it determines that a wheel is slipping. The response you are having is normal for a slippage condition. You are driving on dry pavement, correct? Has there been any recent work done to this vehicle?
Ask Your Own Toyota Question
Customer reply replied 6 years ago
Yes, I was driving on dry pavement. The most recent work done on the vehicle was complete brake job about 6 months ago at NTB.
Toyota Mechanic: Boxer54, Toyota Technician replied 6 years ago
Do you have the ABS or VSC lights on steady indicating the computer has set a code?
Ask Your Own Toyota Question
Customer reply replied 6 years ago
I don't see the ABS or VCS ligths on steady. Only slip indicators light comes on.
Toyota Mechanic: Boxer54, Toyota Technician replied 6 years ago
This means that the computer is taking action, and its processing, it os doing the right thing for the conditions it sees. What this means is that one of the speed sensors is malfunctioning. I have seen this before and it takes some pretty good diagnostic equipment such as a high end scan too or possibly an oscilloscope to pinpoint which sensor. Basically what happens is this, while driving, one of the wheel sensors outputs a reading different enough from the other 3 that the computer determines it needs to take corrective action. Before taking it in to be diagnosed, check each sensor and be sure they are not damaged, and are installed flush. The sensors are inside of each wheel and can easily be identified by the electrical wire going to them. Hate to tell you this, but unless you have access to some pretty good equipment, you probably will not be able to diagnose this at home.
Ask Your Own Toyota Question
Customer reply replied 6 years ago
You're right on, the mechanic found steering angle sensor out of calibration. It was my left wheel front tire going into ABS mode without applying brakes. A zero point calibration was performed to calibrate on steering sle sensor to correct it. I don't have the a diagnostic tester with CAN module kit to diagnose it. I found out this diagnostic tester cost around $2500 just for the tool. I took it to Toyota dealer for zero point clibration and cost less than $300.
Toyota Mechanic: Boxer54, Toyota Technician replied 6 years ago
Great, glad to hear you got it going.
Ask Your Own Toyota Question
Ask Boxer54 Your Own Question
Boxer54
Boxer54
Boxer54, Toyota Technician
Category: Toyota
Satisfied Customers: 1,758
1,758 Satisfied Customers
Experience: ASE Master tech with L1 certification, Toyota Master Diagnostic Technician

Boxer54 is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU!

JugheadUSA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Chris (aka-Moose)

Chris (aka-Moose)

Auto Technician

1,001 satisfied customers

16 years of experience

Marty

Marty

ASE Certified Technician

180 satisfied customers

ASE & Bosch Master Tech. 30 years experience.

Amedee

Amedee

Toyota Technician

1,229 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Anthony

Anthony

ASE Certified Technician

401 satisfied customers

ASE Master Automobile Technician with over 20 years exp. in this field.

Richard

Richard

ASE Certified Technician

9 satisfied customers

Toyota tech. ASE Certified Technician

Skyvisions

Skyvisions

ASE Certified Technician

12,737 satisfied customers

Toyota Master Diagnostic

Genchi Genbutsu

Genchi Genbutsu

Toyota Master Technician

3,761 satisfied customers

Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine

< Previous | Next >

Related Toyota Questions
My rear position light is not working, the brake light works
my rear position light is not working, the brake light works fine. … read more
Mechanic01
Mechanic01
1,716 satisfied customers
Brake lights stay on.. I'm trying to figure out where to get
Brake lights stay on.. I'm trying to figure out where to get the plastic bumper thing as I've found it all over the floor after I pulled out the switch to the brake … read more
Todd M
Todd M
Owner
ASE Certification
1,487 satisfied customers
I own a 2009 Toyota Tacoma and have never had a brake
I own a 2009 Toyota Tacoma and have never had a brake failure until now. Going slowly down a slight incline in traffic, my brake pedal went all the way to the floor and did not stop the truck. I kept … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
2010 Toyota Prius ABS, BRAKE and SKID light all came on
2010 Toyota Prius ABS, BRAKE and SKID light all came on while driving down the free way. Prior to this throughout the day there was a hissing or barking sound when I would apply the brakes. Also, ther… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,436 satisfied customers
Can't start car, brake pedal engaged. Tried jumping because
Can't start car, brake pedal engaged. Tried jumping because thought low battery but still not working.… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,410 satisfied customers
When I press on the brakes only one bulb will light upon one
Hello! When I press on the brakes only one bulb will light upon one side of the car … read more
Mechanic01
Mechanic01
1,716 satisfied customers
Brake problem. Toyota highlander 2007. It was at a repair
Brake problem JA: What is the make/model/year of your car? Customer: toyota highlander 2007 JA: Are you fixing your Highlander yourself? What have you tried so far? Customer: It was at a repair shop J… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,410 satisfied customers
The sensitivity of the brake pedal on my 2013 Toyota Sequoia
the sensitivity of the brake pedal on my 2013 Toyota Sequoia seems to be off. Used to be where the vehicle would remain motionless when I softly rest my foot on the brake pedal. Now, I need to press i… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
12,737 satisfied customers
The toyota red brake light turned on and then turned off
hi the toyota red brake light turned on and then turned off after a couple of minutes … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Brake system is not functioning appropriately. 2003 camry
brake system is not functioning appropriately JA: What is the model/year of your Toyota? Customer: 2003 camry toyota JA: Are you fixing your Camry yourself? What have you tried so far? Customer: no wi… read more
Gunvir Singh
Gunvir Singh
1,817 satisfied customers
2009 toyota venza, below freezing the brake peddle will not
2009 toyota venza, below freezing the brake peddle will not mash to let motor start. This is after car sits all night. once weather warms above freezing the barkes will depress and car will start … read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
The tail lights are not working but the brake lights and
the tail lights are not working but the brake lights and license plate lights and the turn signals all work...? … read more
Todd M
Todd M
Owner
ASE Certification
1,487 satisfied customers
I need to bleed the brakes but I've gotten conflicting
I need to bleed the brakes but I've gotten conflicting information about the proper bleed sequence for a 2003 toyota avalon. … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
2007 Toyota Avalon brake lights and center brake light do
2007 Toyota Avalon brake lights and center brake light do not work. Changed 15 Amp fuse and checked the 7.5… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,410 satisfied customers
The brake lights stay on unless you wiggle the brake pedal.
The brake lights stay on unless you wiggle the brake pedal. Have a 03 mr2 … read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
2 satisfied customers
2002 CAMRY v6; both the ABS and the Brake indicator on the
2002 CAMRY v6; both the ABS and the Brake indicator on the dash are on. Parking brake has no tension when enabled … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
12,737 satisfied customers
ABS brake RED light on but brake works, brake system warning
brake system warning lights too after reset code it works fine for 100 KMs then its appears again … read more
ricardo hohl
ricardo hohl
automotive instructor
Associate Degree
1,818 satisfied customers
Brake lights won't turn on. Replaced Brake Light switch.
Brake lights won't turn on. Replaced Brake Light switch. That did not correct the problem. Cannot find brake light fuse on my 2004 corolla le in the fuse box inside the engine. There is no fuse box be… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x