Question about 2000 Jeep Grand Cherokee

3 Answers

P0340 code. I Changed cam sensor and checked wiring. what else could be wrong? Jeep cherokee, 6 cil

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  • Anonymous Feb 22, 2010

    I checked voltage as indicated and all is as indicated. Can I try a PCM from another jeep? or are they coded to the key?. It is a 99 model.

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  • Master
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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
•the crankshaft position sensor may have failed

With a P0340 OBD-II trouble 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

Posted on Feb 20, 2010

  • Bill Schilz
    Bill Schilz Feb 22, 2010

    The PCM is coded to a specific key.



    The problem will be transferring the SKIM key code over to the used pcm. Some year models where able to transfer the SKIM key code over but it required the DRB and also the SKIM key code that the dealer has access to. You would not even be able to do anything without the 4 digit code to begin with. Swapping a pcm from another vehicle can cause numerous problems. The ABS system can set codes and turn the ABS light on when it sees a VIN number mismatch. This is because once the VIN is programmed into the PCM it can not be changed. So when you installed a used PCM that has another vehicles VIN burnt into its memory, your abs module will see that it is not the same as the old PCM VIN. This can cause a light to come on and stay on until corrected. Also the core program my not be the same. It can differ due to emission package and vehicle build configuration and this can also cause problems. The gray key is used with the SKIM control module that is separate from the PCM, so getting the keys from the other vehicle would not have had any effect because you are still using the same SKIM module that controls the entire system and has the SKIM key code burnt into it. I always tell people to never swap pcms with another vehicle because it can cost you even more money then if you had just purchased a new or reman pcm. So to answer your question, even if it you might be able to transfer the SKIM key code, you would need the DRB and also the 4 digit SKIM key code.

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Check if the timing belt change if it not mabe the probleme it that because your crank sensor stil no good if is position it no good
check your timing good luck

Posted on Dec 03, 2014

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  • Jeep Master
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Hello! Code P0340 can also be caused by a defective Crankshaft Position Sensor...
Pin # 1=Sensor signal...Grey/Yellow
Pin # 2=Ground...Brown/Yellow
Pin # 3=+5 volts...Orange

Check for +5 volts between pins # 3 and # 2...
Check the voltage present on pin # 1 to ground...
Use a digital voltmeter if possible...

Send comment with results...

Guru............saailer


I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Posted on Feb 20, 2010

  • David Burbee
    David Burbee Feb 22, 2010

    Hello! Did you read +5 volts on pin #1? If you did the CPS is defective..As long as you have another PCM go ahead and change it, they are not coded....Please let me know what the new PCM does...I am convinced the CPS is the culprit...There should not be +5 volts on pin # 1...

    saailer



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2 Answers

Whst is code PO340


bad news
those is the main /cam sensor
if fail hard, engine stalls, no spark
which engine, 4.0liters?
wrangle TJ
chapter 21 (dtc pages)
cam single dead or dropping out 1 to 10 times
it does give early warnings. (can)
check wires to it.
chapter 8d
free fsm TJ
http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service




26056188-04p1hebb2pwsjx0k1ddeezuh-1-0.jpg

Jan 16, 2016 | 1999 Jeep Grand Cherokee

1 Answer

I have a 1999 4.0L Mercury Mountaineer with a engine code P0340


Well code 340 is for a problem with the cam sensor for bank one which is the side with cylinder number one. The sensor and circuit would need to be checked which may require the use of a scanner.

Jan 31, 2014 | 1999 Jeep Grand Cherokee

1 Answer

P0340 99 jeep cherokee code


P0340 JEEP - Camshaft Position Sensor Circuit engine cylinder Bank 1 Sensor 1

Possible causes- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty Camshaft Position Sensor
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery

Sometimes and in some models, low battery voltage or a weak starter can can trigger a Camshaft Position Sensor code.

Read more: http://engine-codes.com/p0340_jeep.html#ixzz25iQflrEb

Sep 06, 2012 | 1999 Jeep Grand Cherokee

1 Answer

Where is the camshaft position sensor on the 1999 Jeep cherokee


4.0L is located on right side of engine near the oil filter.

Feb 18, 2012 | 1999 Jeep Grand Cherokee

1 Answer

I have a 05 Dodge ram 1500 90,000mi. and it start to bog and eng.light came on my codes were p0129-p0405-p0340-p0868 and pending codes were p0129-p0325-p0330-p0405-p0340. I had put a new map sensor in...


P0340 is for camshaft position sensor circuit malfunction so the problem can be in you hav already changed sensor, then you need to check wiring from sensor to ecu and if the wires are ok than check the ecu! It can be either of them cousing the problem.

Jan 30, 2011 | Dodge Ram 1500 Cars & Trucks

2 Answers

I have a diagnostic code 340 and 320 on a 1997 Jeep Cherokee. What might the problem be?


DTC P0340 - Camshaft Position Sensor Circuit Malfunction
Symptoms can include:
  • Hard starting or no start
  • Rough running / misfiring
  • Loss of engine power
Causes: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
  • the crankshaft position sensor may have failed

Possible Solutions:With a P0340 OBD-II trouble 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

DTC P0320 also have with this wrong.

Jul 13, 2010 | 1997 Jeep Grand Cherokee

1 Answer

Have 2000 Jeep Cherokee with P0340 code. Cranks over fine but won't start


crankshaft position sensor. verify 5v reference voltage..... where and how to check it depends on what engine. its really important to tell us ALL the facts. Cherokee or Grand Cherokee, 4 or 6 or 8 cyl. what have you checked, and the results of what you have checked.

Oct 14, 2009 | 2000 Jeep Cherokee

2 Answers

2002 jeep grand cherokee with 4.0 engine will die but restart


I do not know what the error codes mean but know that When I has the sme problem with my jeep it was the fuel pump. What happens is when it heats up it es less and less fuel and chokes the engine. When cold it runs better. remember gas in the tank helps cool the pump but sounds like your pump needs replacing as it is starting to give out.

May 13, 2009 | 2002 Jeep Grand Cherokee

1 Answer

Jeep Grand Cherokee Power Loss


a bad cam sensor will cause vehicle to shut off while driving, and cause a hard time starting. but this usually sets a trouble code p0340. scan vehicle to see if any codes come up. after it is fixed, erase codes with a obd2 scanner. if you do not have one, you can go to any auto parts store and they will erase codes for free.

May 02, 2009 | 2001 Jeep Grand Cherokee

1 Answer

Trouble codes P0340, P0622, P1388


OK.. HI.

The codes you have they refer to:
P0340. No cam signal at the PCM
P0622. Generator field not switching properly. " Charging system"
P1388. Auto shutdown relay control circuit.

""""""""NOTE"""""""""
"" P0340" This code , cam sensor make the car long start or not start, conditions.

Jun 29, 2008 | 2000 Jeep Cherokee

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