ETC Light - Goes off when engine turns on
 

Hi all,

I noticed last weekend that my ETC light was coming on when I turned on the Jeep, but not when the engine was on. I checked for an error code and the 3 on/off trick showed no error codes. Is this is a sign of a problem, or is it normal for it to appear when the engine is off? Everywhere I see online mentions servicing it when the light remains on when turning the engine on.