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Check engine light

Have 2006 Dodge Diesel and check engine light keeps coming on. How do you find the code using the ignition key?

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U can try turning the key on and off three times if that doesnt work u need a obd2 scan tool.

Posted on Feb 11, 2009

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2006 VW Jetta code U0100


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1. Put the key in the ignition.

2. Turn key all the way forward - not to the point where the car starts, just to the point where all the lights come on. Do it in this sequence: ON-OFF-ON-OFF-ON..

3. Keep a close eye on your odometer. You will see a series of codes display, followed by the word "donE"...

4. These codes will tell you why the "Check Engine Light" is coming on.

5. If you see "P0442" followed by "P0456". These codes mean respectively: EVAP sensor detection... SMALL LEAK. IF IT IS THESE SET OF CODES, fear not - nothing is wrong with your car. Simply tighten your gas cap, then...

6. Pop the hood, disconnect the NEGATIVE battery terminal - DO NOT DISCONNECT THE POSITIVE TERMINAL - FOR THE LOVE OF GOD. You will run the risk of shorting out the electrical system.

7. Wait a couple of minutes, then reconnect.

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1 Answer

How to clear engine codes 1999 dodge ram 2500


This is the most up-to-date check engine code reference chart for all of Dodge including
Diesel.


2000 and newer Durango have a built-in system that can display check engine light (CEL) codes without the use of a scanner. 1999 and earlier Durangos must be read with a OBD-ll scanner. Your local auto parts store can get the codes for you either way and will usually do this for free.
hope this help let me know : - )


2000 and newer directions:
Turn the key to ON (not start), OFF, ON, OFF, ON and leave it there. If you look in the odometer window the codes will flash any code(s) with a small delay between each result. Each code should be in a P#### format, and will say PDONE when completed - turn your key to OFF and remove. Use the OBD code list to determine what problem the computer detected.

To reset your engine codes:
Remove the negative terminal of your battery (10mm wrench).
Turn your ignition key to START and hold it there for about 15 seconds.
Turn your ignition key to OFF and remove it.
Connect the negative terminal of your battery.
Start but do not hit the throttle. Idle for about 10/15 seconds then turn off.
Restart the truck and drive as usual. It will take at least 12 starts and 48 miles to fully retune the computer. Hard Codes leave a shaddow for 40 full cold starts.

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1 Answer

Was driving my 97 dodge caravan, and it just quit on me, whats the problem?


If the check engine light is on do the following.

insert ignition key into the ignition.

turn the key as follows.

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service codes will flash out in pairs of numbers on the check engine light. 5-5 is the end of the test.( the codes may display on the odometer if its digital) write down the codes and google the findings.

you may have just run out of gas ;-)

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1 Answer

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I'm betting there is a code or shortly will be a code and suggest you scan it before trying to daignose the issue too much further. It could be any number of problems. It could be anything from a fuel related issue, to ignition, to a sensor, to the computer itself, and cracked part, leaking gasket, faulty injector, and so on.

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