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How to bypass low speed sensor on 03 freighter

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03 BMW 745i engine codes P0021,P034,P0393


P0021:"A" Camshaft Position - Timing Over-Advanced or System Performance Bank 2, check timing chain for wear
P0034 :Bypass Valve Control Circuit Low, check crank vent valve.
P0393 :Camshaft position (CMP) sensor B, bank 2 - circuit high input

Jun 24, 2017 | BMW 745i Cars & Trucks

1 Answer

Can you bypass a knock sensor on a 03 monte carlo 3.4 engine


You can never bypass a knock sensor. It will not run right if you try this

Sep 29, 2014 | 2003 Chevrolet Monte Carlo

1 Answer

I have a 03 Buick Century 3.1 trouble code P0502, what does this mean


That is a speed sensor "a" low input code. Sometimes the sensors are external and sometimes they are internal. I don't remember specifically for your vehicle.

I would suggest monitoring the sensor with a higher end scan tool capable of reading transmission data.

Jul 25, 2012 | Buick Century Cars & Trucks

2 Answers

Location speed sensor pt cruiser 03 touring car do


It sounds like the module is in limp mode. The speed sensor is most likely the cause, but it can be some other things as well. A scan will give a code stating the problem area.

The speed sensors are on the side of the trasmission that faces the front of the vehicle. There are 2 of them, and they are the same sensor. One is an input speed sensor located closest to the engine, the other is the output speed sensor.


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Jun 17, 2011 | 2003 Chrysler PT Cruiser

1 Answer

I have a 2000 GMC Yukon XL 1500. The antilock braked engage when slow to about 5 to 8 mph.


Here is a copy of a GM bulletin that applies to you concerns of low speed ABS activation.

Antilock Brake (ABS) Activation At Low Speeds (Clean Wheel Speed Sensor Mounting Surface) #03-05-25-007 - (09/29/2003)
Antilock Brake (ABS) Activation At Low Speeds (Clean Wheel Speed Sensor Mounting Surface)

1999-2004 GMC Yukon XL

Condition:
Some customers may comment on ABS activation at low speeds, usually below 8 km/h (5 mph). Upon investigation, the technician will find no DTCs set.

Cause
The cause of this condition may be an increased air gap between the wheel speed sensor and the hub reluctor ring due to rust and debris built up on the sensor mounting surface.

Correction
Measure AC voltage and clean the wheel speed sensor mounting surfaces.

Raise and support the vehicle.
Disconnect both the front wheel speed sensor (WSS) connectors at the frame and harness.
Place a Digital Volt Meter (DVM) across the terminals of each WSS connector.
Rotate the wheel clockwise approximately one revolution per second. The minimum reading should be at least 350 ACmV's. If the reading is less than 350 ACmV's, remove the wheel speed sensor. Refer to the applicable Wheel Speed Sensor Replacement procedure in the ABS sub-section of the Service Manual. Plug the WSS bore in order to prevent debris from falling into the hub during service.
Clean the WSS mounting surface on the hub to remove any rust or corrosion using a wire brush, or equivalent.

Important
Make sure that the sensor sits flat on the hub. Check the sensor flange against a straight edge to ensure flatness. If the sensor flange is distorted, replace the sensor.

Apply a thin layer of bearing grease to the hub surface and sensor O-ring prior to sensor installation. Use ONLY Wheel Bearing Lubricant, P/N 01051344.
Install either the original sensor or a new one in the hub. Ensure that the sensor is seated flush against the hub. Refer to the applicable Wheel Speed Sensor Replacement procedure in the ABS sub-section of the Service Manual.
Place the DVM across the sensor terminals and recheck the voltage while rotating the wheel. The voltage should now read at least 350 ACmV's.

Good luck and thank you for using Fixya.

Mar 09, 2010 | 2000 GMC Yukon XL

3 Answers

Abs comes on when turning at slow speeds when parking 2003 sierra


most likely you have a wheel sensor going out. The only way to tell which one is with a data scanner that can access the ABS system.

It will see all the tires spinning at the same speed until one shows a different speed.

Also make sure you have all the same tires and the air pressures are the same.

Mar 08, 2010 | 2003 GMC Sierra 1500

1 Answer

My 03 monte carlo is very sluggish. The engine


P0404 Exhaust Gas Recirculation Circuit Range/Performance
P0502 Vehicle Speed Sensor Low Input
P0440 Evaporative Emission Control System Malfunction
hope that helps /a little beyond my expertise but theres your codes your looking for ;)

Feb 04, 2010 | 2003 Chevrolet Monte Carlo

1 Answer

Abs light is on my 2002 tohoe what is the ohms for the speed sensors


I do not beleive that there is a specific test for the speed sensors that measure the resistance of the sensor, if there is you should be able to measure the opposite wheels and figure out what it should be.

The best way to figure out what sensor is bad is to have it scanned, it may not be a sensor at all.

There are several TBS's and recalls on the wheel speed sensors, call a dealership and find out if yours qualifys.

Technical Service Bulletins
All Technical Service Bulletins:
Number Date Name
03-05-25-007C May 06 Brakes - Low Speed ABS Activation/No DTC's Set
04094 Jan 05 Recall - Front Wheel Speed Sensor Corrosion
05068C Mar 08 Recall - Possible Front Wheel Speed Sensor Corrosion
NHTSA05V379000 Aug 05 Recall 05V379000: Wheel Speed Sensor Cleaning

Nov 02, 2009 | 2002 Chevrolet Tahoe

1 Answer

03 Chevy 2500HD Service Brake System Warning


When you replaced the ABS sensor on the hub, did you clean and re-gap the sensor to the speed ring on the hub. There was a recall on the ABS Malfunction on your truck. The tire size don't make a difference to your ABS as long as all four tires are the size, There was a issue bulletin with your Tahoe on the ABS activating under 8 km/h. Good luck and hope this helps, if not clean out the sensor with brake parts cleaner and check the wire harness and ABS sensor bracket. Re gap the sensor to the speed ring hub. Here is the bulletin. Anti lock Brake (ABS) Activation at Low Speeds (Clean Wheel Speed Sensor Mounting Surface) #03-05-25-007C - (05/16/2006) 2001-2006 Chevrolet Suburban, Tahoe, Silverado

Jun 25, 2009 | 2000 Chevrolet Silverado

1 Answer

2001 Chevy Silverado anti-lock brakes activate on dry pavement, the pedal pulsates, the typical anti-lock brake sound is heard, and the truck feels like it is not going to stop at times


One of the sensors has gone bad and needs to be replaced, the other thing to that would also do that is the ABS sensor is dirty or needs to be re gaped to the speed ring on the hub. There was a issue bulletin with your Tahoe on the ABS activating under 8 km/h. Good luck and hope this helps, if not clean out the sensor with brake parts cleaner and check the wire harness and ABS sensor bracket. Re gap the sensor to the speed ring hub. Here is the bulletin. Anti lock Brake (ABS) Activation at Low Speeds (Clean Wheel Speed Sensor Mounting Surface) #03-05-25-007C - (05/16/2006) 2001-2006 Chevrolet Suburban, Tahoe

Jun 05, 2009 | 2001 Chevrolet Tahoe

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