Question about 2002 Jeep Liberty

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P0340 code My car is showing a P0340 code. Why this code appears and where it is located?

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  • sincere29 Feb 05, 2009

    my jeep liberty has the same problem, code PO340. I want to repair this problem, i need to know what parts are needed, and where this sensor is located. Thank for the help.

  • blogblogblog Feb 08, 2009

    I just came back from Autozone and my 2002 Jeep Liberty Sport 4x4, 6 cyl is throwing P0340 & P0442 codes. Last week I had an inspection, new exhaust, new rear brake drums and the fan switch replaced. What do you think is going on?

  • Curt Downs May 11, 2010

    2.4 or 3.7 engine? code is 'camshaft position sensor 'A' circuit (bank 1 or single sensor)

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This indicates that a problem was detected in the camshaft position sensor circuit. Since it says circuit, that means the problem could lie in any part of the circuit - the sensor itself, the wiring, or the PCM.

A code P0340 could mean one or more of the following has happened:

  • a wire or connector in the circuit could be grounded/shorted/broken
  • the camshaft position sensor may have failed
  • the PCM may have failed
  • there exists an open circuit
  • a crankshaft position sensor may have failed
With a P0340 Code diagnosis can be tricky at times. Here are some things to try:
  • Visually inspect all the wiring and connectors in the circuit
  • Check for continuity in the circuit wiring
  • Check the operation (voltage) of the camshaft position sensor
  • Replace the camshaft position sensor as required
  • Check the crankshaft position circuit as well
  • Replace circuit wiring and/or connectors as required
  • Diagnose/replace the PCM as required
The location of these 2 sensors vary. Usually they can be found on the back of the engine or on the transmission. I hope this gives you some direction. Thanks for using FixYa!

Sincerely,

JC

Posted on Nov 21, 2008

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