Question about 2004 Pontiac Grand Prix

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What part of the motor has the abs sensor. - 2004 Pontiac Grand Prix

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  • Pontiac Master
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ABS sensor is located in the wheel bearing, There are wire leads that are common to corrode which would set the ABS light to come on. Best is to have the car scanned with a Tech2 scanner which can indicate which sensor or which ABS part is faulty, if it's the ABS module. The Tech2 scanner can indicate that and save you time and money by having you address the issues, rather then replacing parts that are good.
In the mean time, you can try inspecting thew wire leads and cleaning the ABS sensor on the front wheel hub and the rear wheel hub may be a sealed unit or may have speed sensor rig like the front.
Thank you for using fixya and good luck

Posted on May 06, 2010

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Posted on Jan 02, 2017

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2001 Acura mdx abs light stays on. Code reads 04?


I think you pulled the code incorrectly, or are reading it wrong. To get code:
1. Jump pins 4 & 9 on OD2 connector.
2. Turn key 2 clicks.
3. ABS light should blink to give you code. (long blinks for first digit, short ones for second. Example: One long blink and three short blinks would be 13).
Honda ABS trouble codes list :
11= Right front wheel sensor (open/short to body ground/short to power)
12= Faulty right front wheel sensor pulse signal
13= Left front wheel sensor (open/short to body ground/short to power)
14= Faulty left front wheel sensor pulse signal
15= Right rear wheel sensor (open/short to body ground/short to power)
16= Faulty right rear wheel sensor pulse signal
17= Left rear wheel sensor (open/short to body ground/short to power)
18= Faulty left rear wheel sensor pulse signal
21= Continous Operation (chipped pulser)
31-38 are all the same: "solenoid"
51= Motor lock
52= Motor stuck off
53= Motor stuck on
54= Main realy stuck off
61= Ignition voltage
81= CPU (central processing unit)

Jul 03, 2013 | Cars & Trucks

3 Answers

Abs brake problems


Its a sensor that needs changing, Even if the resistace is ok, dosent mean its pulsating and sending the correct signals.,, you already know the problem, the solution is you have to change the sensor.

Aug 01, 2008 | 1990 Buick Reatta

2 Answers

Abs light is on my pick up truck but when i turn off the truck a running motor sounds under the truck. what does it means? and would it damaged my truck if i keep driving it?


OK, the ABS light being on is caused by a sensor that is pretty cheap, especailly since its just as easy to replace. The rear end/third member has a sensor on top in the middle. Remove the wire harness from the sensor, socket and 7/16 or 10mm should be right size. Unscrew, remove, replace with a new one, put screws back in, connect the plug. Light should go out. Keep in mind I dont know the year of your truck, but thats the ABS light issue. As to the noise your hearing, definately locate the exact source of where it is and go from their. It would be a good idea for anyone who has a car/truck, to have a Haynes or Chilton manual for the year make and model of that vehicle. Lots of good stuff in those books about everything. Good luck

Feb 21, 2011 | Chevrolet 1500 Cars & Trucks

2 Answers

My Trac Off light is on and so is my ABS light.


You are going to need to either replace your abs sensors or your entire wheel bearing and the abs sensor will be included... What the abs sensor does is tell the computer when the wheel is turning or locked, if the abs sensor is bad the computer will not know if the wheel is turning or not, so this will also interact with your traction control.

Jun 05, 2010 | 2003 Chrysler Concorde

3 Answers

Abs lite on and there's a noise coming from about midway the chassie sound like a electric motor running


Your ABS actuator pump is running ... needs to be checked by certified mechanic

Dec 04, 2009 | 2002 GMC Yukon Denali

1 Answer

I have a subaru legacy outback, abs light comes on


one of your abs sensor is bad or the abs motor,go to local shop to diagnose which sensor,shop usually charge $ 60 to diagnose abs system,good luck, let me know ..

Jun 04, 2009 | 1996 Subaru Legacy

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

3 Answers

ABS error code 41 & 42


41 indicates Rpm sensor, at left front wheel, 42, is right front sensor. I'd check for dirt in and around both, clean connections, and wire brush or whatever the toothed ring to clean it all up, then clear codes & see what happens.

Apr 04, 2009 | 1993 Chevrolet K1500

1 Answer

2002 Yukon XL


i serviced my 2004 yukon for abs light came on they told me it was the right front abs speed sensor wire , which is sold sepratly or with wheel hub cost$ 300 or 57$ for just sensor wire, i did all brakes changed sensor and for awhile the stayed off but comes on and at about 20 mph it turns off ?

Jan 25, 2009 | 2002 GMC Yukon XL

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