SOURCE: check engine light on
you need to use a scanner. disconnecting the bat ground will work on most codes. it's safer to use scanner
SOURCE: reset the engine control light in a 2007 dodge ram
If you cycled the key, and came up with only -------- done then you have no stored/active codes. There is no need to reset the computer, but if you still want to, you can disconnect the battery and touch the positive and negative cables together for 10 seconds. this will discharge the pcm's capacitors, ON A DIESEL BE SURE TO DISCONNECT BOTH BATTERIES!
SOURCE: 2004 Dodge Ram Diesel. Check engine light comes
You will need to have a diagnostic test on this vehicle which will then provide you some error codes.Then once you get the error code you can start looking where the fault is.Hope this helps.
SOURCE: 1996 Chevrolet pick up --
p0140 is 02 sensor ckt no activity ( bank 1 sensor 2). bank 1 sensor 2 is in back of convertor, it will need replaced it is sending wrong info to pcm.
SOURCE: How to turn off Check Engine Light 2007 Dodge Ram
YOU HAVE TO TAKE IT TO A SHOP AND HAVE IT SCANNED, OR FOR ABOUT THE SAME PRICE AS A SCAN YOU CAN BUY A CODE READER AND CLEAR IT YOURSELF. THAN YOU WILL HAVE THE TOOL FOR EVERY CAR BUILT AFTER 1996. YOU CAN BUY THEM AT WALMART OR MOST AUTO PARTS STORES.
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