TJ check engine light

Gadget

Caught the Bug
I know you can make the JK show you the failure code, can you do this with the TJ also, and if so how?
 

cbmatt66

New member
For my 06 LJ by turning the key on and off 3-4 times within a 5 second time frame it would show the error codes on the odometer display.
 

wayoflife

Administrator
Staff member
Yup, depending on the year of the TJ, the key trick will do the job. Any OBDII reader will give you codes too.
 
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