1996 Tracker strange electrical issue

[fixkick]

one other way, is to turn on headlamps
and if dead, make sure brake lamps work.
if they are dead, power in the fuse box front cab, fuse 12 is dead
if both sides dead F12 then. 0v both sides. or real low.
power in fenderbox is dead. fuse 2 dead, or if fuse 1 blow kills EVERYthing, or battery bad.
see photo, 27 here this is the most important drawing main power feeds
A DMM finds this easy, while dead car.

http://www.fixkick.com/ECU/1996/Full96%2...-power.pdf

if grounds are good then box 1 is dead. I bet,
if true, the problem is obvious. it true.

the first post did no tell all things dead and all things good (i think you said all things bad, but radio works?)
the main relay is only for the ECU(PCM) nothing else btw.


we have the schematics of ECu here, to see that fact
this all main does. here
http://www.fixkick.com/ECU/1996/EFI1.jpg

see left middle right. here
http://www.fixkick.com/schematics-run.html