Hey guys, I got a check engine warning last night so I did an instrument panel engineering test and got a code I can't figure out. It's just a number, no letter - 9318. Anyone have a clue where I can decipher this? Thanks for helping.

 

The first hex digit corresponds directly to the DTC code identifying the system related to the trouble code.


1XXX relates to Enhanced (manufacturer specific) codes P1
9XXX relates to Body Enhanced (manufacturer specific) codes B1
AXXX relates to Body Enhanced (manufacturer specific) codes B2
DXXX relates to Undefined (manufacturer specific) codes U1
EXXX relates to Undefined (manufacturer specific) codes U2

The last 3 numbers you just add to the end of this. So, in your case, the 9318 transforms as follows:

9 = B1
Add the 318 to the end and you end up with B1318. This is the code for the automatic headlight leveling system seeing a low voltage.

 

If you have never had the codes (in the cluster) reset then that one may be from any time since the car was made and is most likely some years old. The cluster codes do NOT clear via an ordinary OBD scan tool.

OBD tools are almost free and will tell you the code you now have - best to just buy the tool.