ComancheLover90 Posted December 17, 2015 Share Posted December 17, 2015 So I'm trying to do a blink test on my 90 comanche and I don't have a engine light so I'm wondering what light will it blink from and what is the procedure Link to comment Share on other sites More sharing options...
FrankTheDog Posted December 17, 2015 Share Posted December 17, 2015 You don't have obd1, you have a renix system. That's pre obd1. Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 17, 2015 Share Posted December 17, 2015 Checking for fauly codes by using the ignition switch and counting lamp pulses is only for 1991-1995 OBD1 vehicle. Your 90 is a Renix system, not OBD1. Damn you Frank. :yes: Link to comment Share on other sites More sharing options...
ComancheLover90 Posted December 17, 2015 Author Share Posted December 17, 2015 So is there any way to check for codes? Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 17, 2015 Share Posted December 17, 2015 There's a way, but it's hardly practical......... http://www.cherokeeforum.com/f2/how-check-trouble-codes-1990-4-0-a-62673/ Link to comment Share on other sites More sharing options...
87MJTIM Posted December 17, 2015 Share Posted December 17, 2015 Snap On made a scanner - MT2500. It only reads real time. There are not stored codes. You will need the correct make and year cartridges plus the appropriate cables. Link to comment Share on other sites More sharing options...
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