2010 Rubicon-2 door, automatic. Stock except for Superchip and K&N.

Hey guy's. Hope someone can help. I went to return the jeep to stock settings because I have an appointment tomorrow at the dealer. When I connected the flaspaq nothing happened, plug was dead.

I tried to connect my scan gauge and same thing happened. I was told to check the fuses on the aux port. They are alright. Did a sysyems check by placing the key in on and the MIL symbol flickered and stayed on. I know that's not good. It's suposed to stay solid.

A couple of questions, does anyone have any ideas and should I take it in tomorrow or wait till I get this fixed on my own.

Thanks
Tom-Fakrwee

 

Tom,
All the fuses under the hood are good? This would happen to OBDII Exploders also and was usually an underhood fuse.

If it's not, then it may be a pin problem at the connector or a computer issue. Sorry, buddy.

 

Grab a Multi Meter. Pin #4 CommonGround, #5 SignalGround, #6 CAN High, #14 CAN Low, and #16 Positive 12v. At very least you need voltage between pins #4 and #16. To check CAN Bus move your meter to Ohms and check between pins #6 and #5. should read 60. Pins #6 and #14 should read 120. (60 X 2). Pin one is the upper left.

 

Hi Alex. Yea, all fuses underhood are good. I checked. Thanks, I'll keep you posted.

Strutsound, Ill try that tomorrow before I go. Do you know why my MIL symbol is acting up? Thanks.

Tom

 

NICE!

 

have you done a battery disconnect for 5 minutes and then reconnect to reset the computers?

give that a shot... seems to cure a lot of demons in our jeeps/
-Christopher

 

Well I took it in to the dealer and he prefers I return it to stock before he services it. I tried disconnecting the battery before leaving and that didn't work. I'm going to disconnected some fuses he suggested and disconnect the battery for half hour. But first I'm getting my multimeter and doing what strutssound suggest. I'm crossing my fingers dam it,

 

Well done just about everything and plug is still dead.
It's also doing the following:
With the key in on position the engine or MIL light comes on.

5. Approximately 15 seconds later, one of two things will
happen:
a. The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn OFF
the ignition or start the engine. This means that your
vehicle’s OBD II system is not ready and you should
not proceed to the I/M station.
b. The MIL will not flash at all and will remain fully
illuminated until you turn OFF the ignition or start the
engine. This means that your vehicle’s OBD II system
is ready and you can proceed to the I/M station

Mine is doing a. What the hell is going on? I guess I might have to bite the bullet and take it in to the dealer. Dam.

Tom

 

SOLVED!!!! I did another fuse check and found the culprit. Fuse #30 15AMP Wiper motor Frt. & J1962 Diagnostic Feed fuse. Hope it helps someone in the furure.

Somehow I missed it. All is back to good. Thanks for all the replies.

Tom-Fakrwee

 

Glad to hear you figured this out. I'm surprised the dealer didn't check the specific fuse. Shouldn't the dealer have known that the specific fuse was tied to the OBDII plug?