[Mike@N54Tuning.com]

I thought I would post this as I get questions a few times a week from people who don't have a USB cable with their JB4.. Also as a hint having the USB cable makes life so much easier on so many levels that everybody should have one!!!!!

To read codes via the in dash commands select menu 1 option 1 via your steering wheel controls.

1) The blinkers will flash twice and the speedo will move to indicate how many codes are stored.

2) The speedo will return to zero and begin reading out the codes. Each is a 4 digit number. Note the position of the speedo and reference the photo below to convert them to 0-9 and A-F code numbers. Those numbers can then be\ searched on this forum.

3) Each code will be followed by two flashes of the blinkers.

4) At the conclusion of the reading the blinkers will flash four times.

5) If the blinkers flash twice, then four times, with nothing in between, you have no stored codes.

Alternatively you can also read codes via the JB4 interface which will conveniently list the descriptions as well.

[Craig@SupremePower]

very cool...

[ianthegreat]

definitely need a USB cable, i can't imagine people trying to read 5 codes from the speedo

[5soko]

ive done two codes, takes some time for sure, but you can get it. BT cable or USB cable is easier, but its always nice to have this as an option aswell.

Usually i just use this feature to see if i have codes in general really quick.

[Mike@N54Tuning.com]

Originally Posted by ianthegreat

definitely need a USB cable, i can't imagine people trying to read 5 codes from the speedo

+1

I really do encourage everybody to get one

Mike

[Tiago@VRSF]

Very nice.

[GetSomeE92]

To use the cable, I presume you have to have a laptop with some kind of software loaded into it?

[Mike@N54Tuning.com]

Originally Posted by GetSomeE92

To use the cable, I presume you have to have a laptop with some kind of software loaded into it?

Yes.. (JB4 Software - Free Download)

Mike

[135iMike]

Originally Posted by Mike@N54Tuning.com

5) If the blinkers flash twice, then four times, with nothing in between, you have no stored codes.

Given this thread is old as hell, you just saved me from being overly paranoid. Much love

[aaron_]

How do I read them If my speedo is in km/h not miles

[tsmall07]

I just read my codes and it came out as 029CD, but I can't find anything on that on this forum or a Google search