Cool Jeep Wrangler Tj Check Engine Light Codes References. Onboard diagnositics (obd 1 & obd 2) and dtc (diagnostic trouble codes) for all cars. Apart from them, check the code scanner to see if it works with other codes.
Did some searching and found that if you put transmission in neutral (parking brake on) and turn key to on then off 3 times in a row the odometer will show you a diagnostic code. Web hello all jeep has been running perfect. Web below is a link where you will find all the codes you will need for your jeep.
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