Question about 2005 Scion tC

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2005 Scion TC ABS, Brake and Tire Pressure lighs on

The Scanner tool said it was a left rear speed sensor. I have replaced the hub assembly with new sensor twice now. Scan tool still says it is a bad LR sensor. The connector looks clean. Help ?

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Check for corrosion at the wire side of the plug (would be a green dust. You may need to strip back some of the plastic to get a good look at the wire)

Posted on Feb 08, 2014


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Posted on Jan 02, 2017


SOURCE: tire pressure light comes on

You shouldn't be setting the tire pressure to the max inflation pressure listed on the sidewall, that will likely result in uneven tire wear with the center of the tire wearing out prematurely. You should set the pressures according to the listings in the door jam. Most likely 32-34psi. Also, have you checked the spare tire? Some systems monitor and will illuminate the TPMS light if the spare tire pressure isn't within an acceptable range. The spare is often overlooked when checking tire pressures because of a TPMS indicator.

Posted on May 11, 2010

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SOURCE: 2008 Scion xB - Brake, VSC & ABS warning

I have the same problem as you, with the same car. It seems to be moisture related. Mine is two months out of warranty, so I inspected the rear wheel speed sensors, like your dealer said. There is a TSB (technical service bulletin) concerning this problem, so Toyota/Scion do indeed know that these sensors are failing. In my case, one of the sensor connectors was broken when the car was assembled, which bent the tiny sensor pin, which broke off while I was attempting to get the connector plugged back into it. I make my living as an electronic technician so I'm not inexperienced with such things. Anyway, rumor has it you're looking at over $700 at the dealer to replace one sensor, since you cannot replace only the sensor. The part (rear hub assy) can be obtained online for $290, plus the wire for $37. All in all, it's a crappy situation. A known problem concerning key safety systems on the car, and Toyota neither issues a recall nor do they extend the warranty.

Posted on Apr 02, 2011

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My 2005 cts Cadillac brake ligh, abs and traction light stay on

One of the wheel speed sensors is malfunctioning and will need to be replaced.
This video shows the replacement of an entire hub assembly on a 2010 Cadillac CTS. Yours will be close to the same. You can try to replace just the sensor first but sometimes you might as well just replace the whole hub assembly. If you take it to someone who can read the computer, it will tell them and you which wheel(s) have the fault.

Jan 18, 2017 | Cadillac CTS Cars & Trucks

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Why would my odometer stop working after driving 2 miles at 55 and abs, tc, and brake light warnings come on

Read the codes. Could be another wheel sensor has failed or the replacement one is defective.

Sep 10, 2016 | 2005 Mercury Montego

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I have a 2006 scion tc 5 spd doesnt read my speed i change my wheel sensors all 4 tire and stil doesnt read my speed i also change my cluster and still doesnt work any idea what could be also giving m

the dash speed readout is allways feed via the transmission speed sensor , it's usually close to the final drive output from transmission , this not working would also effect car if it had a automatic trans in it as it would not know what speed to shift at, a little less obvious in a 5 speed , wheel sensors usually only feedback to ABS brake system as they tell abs what tires are turning

Sep 19, 2014 | 2006 Scion tC

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Replace Front Wheel Hub Bearing 2002 Jeep Grand Cherokee 2 wheel drive

  1. Raise and support the vehicle.
  2. Remove the wheel and tire assembly.
  3. Remove the brake caliper, caliper anchor, rotor and ABS wheel speed sensor.
  4. Remove the cotter pin, nut retainer and axle hub nut.
  5. Remove the hub/bearing mounting bolts from the back of the steering knuckle. Remove hub/bearing from the steering knuckle and off the axle shaft.
  1. Install the hub/bearing to the knuckle.
  2. Install the hub/bearing-to-knuckle bolts and tighten to specification.
  3. Install the hub washer and nut. Tighten the hub nut to specification. Install the nut retainer and a new cotter pin.
  4. Install the brake rotor, caliper anchor, caliper and ABS wheel speed sensor.
  5. Install the wheel and tire assembly.
  6. Remove the support and lower the vehicle.

Apr 22, 2012 | 2002 Jeep Grand Cherokee

2 Answers

Can bad hub bearings make the abs and tc light to come on in a 2003 gmc yukon

Absolutely YES! The bearing and hub assembly contains the wheel speed sensor which is used by the Antilock Brake System (ABS) and the Traction Control (TC) system to see when a wheel is trying to lock up and cause skidding. The ABS will release the hydraulic pressure to the brake on that wheel and the traction control will reduce engine speed to prevent the wheel from locking up or causing you to spin out.
Many GM vehicles also commonly have problems with the wiring harnesses to the wheel speed sensors that can cause this same problem. The computer does not know WHY it cannot read the speed sensor signal. It only knows that it is not getting the signal and this is why the light is turned on. Before paying the BIG BUCKS for a wheel bearing and hub assembly, it would be wise to make absolutely certain that the problem is not being caused by a fault in the wiring harness. I have seen many mechanics automatically replace the wheel bearing only to find out that the problem still exists because they did not take the time to DIAGNOSE the problem. The fault code description says "Wheel Speed Sensor CIRCUIT fault." They see "speed sensor and automatically replace the sensor without actually checking the circuit. Not a problem unless you are the customer having to PAY for this type of guess-work!!!

There are wiring harness repair kits available for MOST GM vehicles just for this purpose.

I have included pictures of the bearing and hub assembly and the wiring harness kit to help you understand what we are talking about here.

Note the electrical connector sticking out of the hub assembly. This is the wires to the speed sensor. In the other picture, the connector at the end of the wiring harness is what plugs into the connector in the hub assembly. The other end of it gets spliced into the main vehicle harness in the engine compartment, after cutting the original harness out.




Aug 20, 2011 | 2003 GMC Yukon

1 Answer

Where the hell can I get a FREE PDF download for my Ford fusion 2 for the removal and replacement of the rear wheel bearings as well as the torque settings for the final nut after replacement.All the so...

Rear Suspension - Rear Wheel Bearing Fusion 2002.75 (06/2002-)

-Removal and Installation

Special Tool(s)

Installer, Differential Bearing

Installer, Input Shaft Seal
307-210 (17-041)

General Equipment
Soft faced hammerWooden block


CAUTION: The brake drum and hub assembly removal in this procedure is for installing a new wheel bearing, not for access to brake system components.

-All vehicles

Remove the dust cap.
Remove the wheel and tire.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

-Vehicles with rear drum brakes
Release the parking brake.
Remove the brake drum and hub assembly.
Remove and discard the wheel hub retaining nut.

-Vehicles with rear disc brakes
Remove the brake disc.
For additional information, refer to in this section.

Remove the wheel hub.
Remove and discard the wheel hub retaining nut.

-All vehicles

Remove and discard the wheel speed sensor ring (brake disc shown).
Remove the circlip (brake disc shown).
Using the special tool, remove and discard the wheel bearing (brake disc shown).


-All vehicles

CAUTION: Support the wheel hub assembly on the wheel mounting face and not on the wheel nut studs.

Using the special tool, install the new wheel bearing (brake disc shown).

Install the circlip (brake disc shown).


Make sure the wheel speed sensor ring is not knocked, damaged and kept free from metal fragments.

Protect the face of the wheel speed sensor ring with a non-ferrous flat block to prevent damage.

Make sure the wheel hub or brake drum is adequately supported and do not allow it to rest on the wheel studs..

Make sure the wheel speed sensor ring is pressed on slowly and squarely until fully seated.

Do not exceed a maximum load of 10 kN.

Using the special tool, install a new wheel speed sensor ring (brake disc shown).

Vehicles with rear drum brakes


Avoid impact on the wheel speed sensor ring.

Make sure the wheel speed sensor ring is clean.

Avoid any contact between the wheel speed sensor ring and a magnetic surface.

Rotate the wheel hub assembly 10 times counter-clockwise when tightening the wheel hub retaining nut to prevent damage to the wheel bearing.

NOTE: Install a new wheel hub retaining nut.

Install the brake drum and hub assembly.
Apply the parking brake.

-Vehicles with rear disc brakes


Avoid impact on the wheel speed sensor ring.

Make sure the wheel speed sensor ring is clean.

Avoid any contact between the wheel speed sensor ring and a magnetic surface.

Rotate the wheel hub assembly 10 times counter-clockwise when tightening the wheel hub retaining nut to prevent damage to the wheel bearing.

NOTE: Install a new wheel hub retaining nut.

Install the wheel hub retaining nut.
Install the brake disc.
For additional information, refer to in this section.

-All vehicles
Install the wheel and tire.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

NOTE: If the dust cap is damaged a new dust cap must be installed.

Using a soft faced hammer and a wooden block, install the dust cap.

There is no real torque settings for the rear wheels, except to say, do not over tighten or you will stretch the lugs and the will loosen over time.

May 28, 2011 | Ford Fusion Cars & Trucks

2 Answers

My chevrolet equinox 2005 abs ligh is on. after scanning the solution was to replace the speed sensor.Also brakepads has been replaced . the computer has been resetted. but afterwards the pedal keeps...

Theres a problem with a speed sensor at the wheels, there are four abs sensors one on each wheel and they read the wheel speed of each wheel, what is happening is that when you step on the brake the computer is reading the speeds of each wheel and sees one wheel is moving slower than the other and thinks that whell is skidding so intern its release the braks very very fast and thats the vibration you are feeling but the wheel is not skiding theres a problem with a sensor thats giving a flase reading, a scan tool will be needed to be conected to the compuetr and truck driven to see which sensor is bad or acting up, hope this is helpful. some times it can be dangerous if it keeps releasing the brakes while you are trying to stop.have this checked out.

Feb 26, 2011 | 2005 Chevrolet Equinox

1 Answer


It is part of the bearing hub assembly.Very have to do without air tools,If setting multiple abs/tc code (wheel speed sensors) probably abs electronic module or chaffed wires on drivers side at ac lines by air box.Have big problems with this and probably will come back.

Jun 12, 2009 | 2005 Saturn Relay

1 Answer

2005 impala

All the hubs on the car have the abs sensor built into the hub. The abs system has to be re set to read the sensor . The rear hub bearing if noisy should be replaced. There are wiring harnesses that connect to the abs sensor. The harnesses to each of the abs sensor should be replaced.

Mar 18, 2009 | 2005 Chevrolet Impala

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