Hello all! I'm new to the forum, and had a quick question. I've had a 2005 WK with the 4.7, QTII, and 55K miles for a little while now, and the Service 4WD System light flashed up. I've read through several threads on the topic, and plan on taking it to the dealer if necessary.
My question however is whether or not the WKs have a self diagnostic mode where they will put the codes up on the display on the dash. I did a search and couldn't find anything. A friend of mine had a Cougar back in the day with a similar type display and with a certain sequence it would "boot up" in diagnostic mode showing engine rpms, DTCs, etc. I was wondering if my Jeep had this or if I would need to take it to an auto parts store or the dealer to see if it is throwing any DTCs.
The vehicle runs fine, but has intermittently started throwing up the Service 4WD System at random times, and I want to know if it is throwing a DTC or not so I can explore the flash option per the TSB.
Any information would be most helpful!