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Need information on what a halls sensor is, where it is located, and its function is thank you.

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  • Ray Sallee
    Ray Sallee Mar 12, 2011

    yes quite informative

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A hall effect senor is a magnetic sensor that senses a break in the magnetic field when a trigger wheel passes through the field. Depending on the year many are on the front of the crankshaft pulley, others are inside the distributor and provide the same signal as the old mechanical points did.

Posted on Mar 12, 2011

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What is the function of a hall sensor G40(Camshaft position sensor)


Hall sensor function
A hall effect sensor is a sensor that produces a square wave output that can be directly read and modulated by the ECM (as opposed to an AC wave sensor which produces a sine wave that must be converted). They are used as cam position sensors and ABS wheel speed sensors.
Hall Effect Sensor and How Magnets Make It Works

Apr 18, 2017 | Cars & Trucks

1 Answer

2001 saturn lost keys to it. Got it to crank cut right back off secrity lights on bought a brain box for it and got 2keys with it. Still want crank I need to know what to do t could the box be bad ..


No ,the box is probably not bad , but you need to have it programmed . The dealer is the only one that can do that ? The keys don't matter .
The passlock sensor mounted to the ignition switch assembly is located inside the upper right side of the steering column. The passlock sensor contains two hall effect sensors: a tamper hall effect sensor and a security hall effect sensor. The tamper hall effect sensor is mounted on top of the security hall effect sensor. Should someone attempt to defeat the system by use of magnetic experimentation, the tamper hall effect sensor will activate first.
The passlock system is a vehicle theft deterrent system which deters drive-away vehicle theft by disabling engine operation if the ignition lock cylinder is not rotated with the proper mechanically cut key.
The passlock system is made up of an ignition switch assembly, passlock sensor, body control module (BCM), instrument panel cluster (IPC), and a powertrain control module (PCM).
The ignition switch contains a magnet mounted on the lock cylinder and a passlock sensor assembly which consists of security hall effect sensor, tamper hall effect sensor, and output resistors. A drill proof metal shield is also staked over the sensor housing.
The passlock sensor mounted to the ignition switch assembly is located inside the upper right side of the steering column. The passlock sensor contains two hall effect sensors: a tamper hall effect sensor and a security hall effect sensor. The tamper hall effect sensor is mounted on top of the security hall effect sensor. Should someone attempt to defeat the system by use of magnetic experimentation, the tamper hall effect sensor will activate first.
The BCM has the passlock controller integrated into it which controls the majority of the security systems logic. The BCM reads the data from the passlock sensor continuously. If the data is correct and has been received by the BCM within a specified time, the BCM will send a coded password to the PCM. The PCM will then allow the fuel injectors to operate.
The coded password for the security system is sent from the body control module to the PCM via the class 2 data link. If the password is correct and received within the specified time, the PCM will allow the fuel injectors to operate.
Sorry but you can't just replace parts , you need to know how the system works . You need to take this to a ASE certified repair facility that knows how it works .

Oct 10, 2015 | Saturn Cars & Trucks

2 Answers

What is a cam sensor and what does it do?


the cam position sensor, does exactly as its name implies. It monitors the Valve Cam position and has a number of functions. mainly valve timing and ignition timing. As most engines are computer controlled spark instead of the old mechanical distributer, the ECU controls the timing of the spark based on information it gets from the Cam Position Sensor and other sensors on the engine.

Hope this is of some help and what you were looking for.

Jul 12, 2014 | 2006 Chevrolet Aveo

3 Answers

Where is the crank sensor on a 1994 ford taurus gl


What engine? 3.0 DOHC 3.0 OHV 3.8 liter

Apr 10, 2013 | 1994 Ford Taurus

1 Answer

What are cam position sensors for 2005 honda accord 3.0L


Camshaft Position Sensor Camshaft Position Sensor Operation:
00158_camshaft_position_sensor.jpgA magnetic or hall effect sensor. It sends a signal to the computer relaying information about shaft speed, position and acceleration or deceleration. This information determines when the fuel/air mixture needs to be ignited and how much mixture is needed for the engine.

Nov 14, 2012 | Cars & Trucks

2 Answers

1990 ford mustang lx 5.0L Code 54 How do i fix this


Fault Code 54

Description: No fuel injector sync pickup signal during engine rotation
Power loss light: On
Limp-in mode: Logic module will guess at injector timing

Possible Causes:
Bad connection or wiring - Check the wiring and connections between the hall effect sensor (located underneath the distributer cap) and the logic module. Check the continuity of the two 3 conductor cables coming out of the sensor--these are prone to fatiguing and breaking inside the insulation where they exit the sensor if the cables are not properly tied down. You may be able to resolder them. Clean and regrease any corroded connectors with dielectric grease and repair any shorts.

Hall effect sensor failure - Check the two, flat 3 conductor cables coming out of the sensor. These often fatigue where they exit from the sensor. Upon replacing the sensor, make sure the cables are clipped or tied to the distributor cap shroud (or elsewhere) so they do not swing around.

Diagnostic Method
Trigger Parameters
- Engine cranking or running (signal coming from ignition reference sensor)
- No signal from the fuel injector sync pickup sensor

Results If Component Fails
Fault code 54 is stored. The engine will stall and will not start.

Good luck.

Apr 22, 2011 | 1990 Ford Mustang

1 Answer

Looking to find camshft sensor on 2002 land rover any help. I would be so thankfull.


On an overhead camshaft engine, look for the camshaft sensor near the end of the camshaft pulley area on the left or right side of the engine.

Camshaft Position Sensor Operation:00158_camshaft_position_sensor.jpgA magnetic or hall effect sensor. It sends a signal to the computer relaying information about shaft speed, position and acceleration or deceleration. This information determines when the fuel/air mixture needs to be ignited and how much mixture is needed for the engine.

For your 2002 Land Rover Freelander AWD 2.5L MFI 6cyl Part Number:
SU6389

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function linkImage(newLink){ var url = newLink.href; if (url.indexOf('prodImageURL') == -1) { newLink.href = url + "&prodImageURL=" + document.getElementById("enlargedImage").value; }else { newLink.href = url.substr(0 , url.indexOf('prodImageURL')) + "prodImageURL=" + document.getElementById("enlargedImage").value; } } function changeImage(filename) { document.getElementById("mainimage").src = filename + '2/'; document.getElementById("enlargedImage").value = filename; } Good luck on this repair.

Nov 03, 2010 | 2002 Land Rover Freelander

1 Answer

Cannot find the crank shift sensor location


M112 And M113 Engines
  1. Before servicing the vehicle, refer to the precautions.

  2. Remove air filter housing.

  3. Remove hot film mass air flow sensor.

  4. Remove air duct housing.

  5. Release and disconnect electrical connector at crankshaft Hall sensor.

  6. Remove bolt.

  7. Pull crankshaft Hall sensor out of crankcase.
    22205_mbca_g0045.gif

    CKP sensor location

To install:

  1. Installation is the reverse of removal.

  2. Tighten crankshaft Hall sensor to crankcase bolt to 6 ft. lbs. (8 Nm).

  3. Carry out first initialization and then sensor rotor adaptation using Star Diagnosis tool.

Oct 22, 2010 | 2002 Mercedes-Benz C-Class

2 Answers

Where is the crankshaft sensor located


your ignition system doesn't use a Crank sensor, it uses a distributor Hall Effect magnetic pickup, both parts do the same thing but in very different ways, the hall effect is located inside the Distributor. here is the part number.
STANDARD MOTOR PRODUCTS Part # LX359 Price $51.79 Source: www.rockauto.com

Jun 29, 2009 | 1994 Cadillac DeVille

2 Answers

Most common cause for code P0340 of 95 Ranger


Hi, the cam shaft sensor will be located Under the hood, center, upper engine area, mounted behind rear of intake manifold, in the engine block.


This is a magnetic or hall effect sensor. It sends a signal to the computer relaying information about shaft speed, position and acceleration or deceleration. This information determines when the fuel/air mixture needs to be ignited and how much mixture is needed for the engine.

The possible causes of failure will be faulty housing or faulty wires as well. A faulty ECM could trigger a false alarm as well. this is highly unlikely but, possible in most cases. The most reported reasons is flat out sensor failure.

May 21, 2009 | 2001 Ford Windstar

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