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How to test a cam position sensor - 2005 Nissan Maxima SE

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No need, cam sensors fail on your car faster then any other car

Posted on Oct 20, 2013


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Want to b sure it's the cam sensor not the wiring-how to test

Hi Santos, The link below is a youtube video showing how to test a cam sensor........CHEERS..

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Buy the sensor from the car dealership. The sensors at auto stores are inferior and sometimes do not work properly.

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Car loses power and dies. Will not restart for about 30 min

have your cam position sensor tested or crankshaft position sensor tested I think you will find one bad probably the cam position sensor. if you found this helpful please leave good feed back

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My engine light came on in my 2005 Ford Mustang GT and the code reads: Circuit A, Cam Shaft Position Sensor. Then my RPM gauge worked then stopped working then worked then not. I was driving my car and the...

Don't think it is the computer , wiring issue more then likely !
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Need cam timing spec for mondeo st220

For camshaft timing spec,click the link below :----Ford Mondeo ST220 camshaft Timing specifications?
-------This will help.
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2008 Kia Rio-After I replaced the timing belt my check engine light came on. I was told that the cam shaft position sensor was bad and needed to be replaced. I replaced it and the check engine light came...

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I ran a code on my 99 dodge ram 1500 and it came back with " no cam signal at pcm" what does that mean exactly

Hi, the camshaft position sensor signal is not reaching the powertrain control module. This can be a problem with the sensor, the connector, or the wiring. The sensor is inside the distributor. See figure below and some test procedures you can try from Please let me know if you have more questions, and thanks for using FixYa.


To completely test this sensor and circuitry, you need the DRBII scan tool, or equivalent. This is a test of the camshaft position sensor only.
For this test you will need an analog (non-digital) voltmeter. Do NOT remove the distributor connector. Using small paper clips, insert them into the backside of the distributor wire harness connector to make contact with the terminals. Do NOT damage the connector when inserting the paper clips. Attach the voltmeter leads to these clips.

  1. Connect the positive voltmeter lead to the sensor output wire.
  2. Connect the negative voltmeter lead to the ground wire.


        Fig. Camshaft Position Sensor circuit schematic
        Fig. Camshaft Position Sensor wires: (1) ORN (5v supply), (2) BK/LB (sensor ground), (3) TN/YL (camshaft position sensor signal)

        1. Turn the ignition ON . Rotate the engine. The meter should show a reading of less than 1 volt and a high voltage reading of 5.0 volts as the high and low points on the wheel pass the sensor.
        2. If there is no voltage reading at all, check the meter connections.
        3. If voltage is still not present, check for voltage at the supply wire.
        4. If 5.0 volts is not found at the supply wire, check for voltage at cavity A-17 of the 32-way connector. Leave the engine controller harness connected for this test.
        NOTE If voltage is not found at the PCM connector, you will need to diagnose the system using a DRBII scan tool, or equivalent, or take the vehicle to a qualified shop.

        1. If voltage is present at the engine controller connector, but not the supply wire:
          1. Check continuity between the sensor and supply wire. This is checked between the distributor connector and cavity A-17 . If continuity is not present, repair the wire harness.
          2. Check for continuity between the camshaft position sensor output wire and cavity A-18 at the engine controller. If continuity is not present, repair the wire harness.
          3. Check for continuity between the ground circuit wire at the distributor connector and ground. If continuity is not present, repair the wire harness.

        2. Crank the engine while observing the voltmeter. The voltmeter needle should fluctuate 0-5 volts, approximately. This will verify the camshaft position sensor is operating properly and a sync pulse signal is being generated.
        3. If a sync pulse signal is not detected, and all other variables have been eliminated, replace the camshaft position sensor.

        Jan 02, 2011 | 1999 Dodge Ram

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