AE86 check engine light help

[ratmaster808]

So for the last 6 months or so my car has been running fine no issues, aside from my passenger headlight no going down.

Anyway last night I drove home from work parked my car with the headlights off but in the up/open position like I normally do. This morning when I went to start my car it just cranked but would not turn over.
I tried putting down my headlights and they wouldn't go down nor would they turn on, also the high beams wouldn't go on either and the high beam indicator on the dash did not light up.
So I tested the battery and it read 12.5v and all my other lights/radio/signals worked so i ruled out the battery being dead. I checked the 15a efi fuse and the 10a engine fuse in the engine bay and they were fine but I replaced them just to be sure.

I did notice that the check engine light does not illuminate when the car is in the on position and If i recall correctly that means there's no power going to the ecu? So what wires would I have to check/trace to see if thats the issue?
Also its pretty strange that this would randomly happen during the night from just sitting in my garage

[jondee86]

Check the 15A STOP fuse in the #1 JB (driver's side kick panel).
If that is good, check all the fusible links on the battery positive have
12V on the downstream side.

Cheers... jondee86

[ratmaster808]

Check the 15A STOP fuse in the #1 JB (driver's side kick panel).
If that is good, check all the fusible links on the battery positive have
12V on the downstream side.

Cheers... jondee86

I found the problem it was the wire that goes to the 60A fuse on the battery positive; the wire was lose from connector so I had to recrimp it... found out that was the problem when I was driving down the road and turned on my headlights and the car died....

[jondee86]

Good catch When a whole bunch of electrical stuff drops out at the same
time, it is always a good move to check the fusible links. A bad connection
there will have the same effect as a blown link.

Cheers... jondee86

[ratmaster808]

Good catch When a whole bunch of electrical stuff drops out at the same
time, it is always a good move to check the fusible links. A bad connection
there will have the same effect as a blown link.

Cheers... jondee86

I hope this short thread helps others, I seen people with this same problem.
sucks driving on the highway and you turn on your headlights and the car stall, I couldn't even turn on my hazards luckily my friend was driving behind me and all I had to do was tap the fusible link box to get it to start hahaha