I have been troubleshooting my 95' Blazer based on what I have read on this forum. One quick question on the 3 button system when 4 wheel drive is engaged should both the 4 hi and 4 low buttons be lit ? Otherwise when these two are not lit both 4 hi and 4 low blink 4 times then switches right back to 2wd. Anyone know what code is for 4 blinks? 4Low engages perfectly fine by the way with only the 4Low button lit.


Thanks to all