Where wires go on350gmc 86 model

On the the 86 year,they changed to the fuel injected in 86.5,Do you have a carburetor?I have a 85 Nissan service manual I got from the dealer.The 85 and 86 with the carburetor are the same,I have a 85 4x4 model,but I have installed a Weber carb. and I have a wiring diagram.

negative terminal goes to the distributor

Your year--make--model didn't post for some reason? Can you give that info, plus, what does the relay control?
Usually terminals 30 and 87 are on the load/switch side of relay. Terminals 85 and 86 are on the control/coil side of relay.

sold all over earth, what country> we cant guess this....
don't break the brakes....!!!
my guess, you meant the
brake lamps are on keys in pocket. and the battery lamp is dash(charge) glows, keys in pocket. right?
and battery cable kills all this illegal states above. sure.

86 nissan PU.
720 PU>? Datsun>?
or D21 Nissan ( 1986 Dat-SUNS became NISSANS. in USA)
Model years 1986.5 (second half) and later were called Nissan Hardbody Trucks, chassis code D21.

D21 are called HARD BODY trucks. mid year changes.
so???? which is yours.

as you might not ,know , the models are wired diffrent by different exact models and country.
long ago , i had the 86 with the VG30 V6...

so i will roll the dice and answer for
D21
ok?

things off stay on, 101
bad wiring, hacked in wiring, radios,alarms and other things.
all can cause this..... its old and is common on old cars.
but if wiring is not hacked, (id see that in 10seconds in person)
no hacks.
gas engine car not diesel.
USA 86 body
brakes
Im looking now at the schematic and this car has a hot at all times
brake lamp switch. (foot pedal switch)
SO only a bad switch can cause this.... period
now the dash charge (battery ) light stuck on.


my online source ,has the alternator system missing.
so can not comment.
the lamp gets its power from the key switch
if the key switch fails , all warning lanps glow not just the
charge.(battery)
so its not that
my best guess is wiring errors, that put power the the cluster
key off. id bet that is it .

wiring errors to the ignition output is side, key switched power is failing.

Your problem is most likely a defective clockspring assembly. This is also called "spiral cable assembly" it is located just under the steering wheel on the steering column and makes the connection between the main wiring harness and the circuits for the air bag and the horn. I cannot give you wire colors because your question did not mention year, make, model, engine size or whether the vehicle is equipped with cruise control or not. (cruise control makes a difference in the clockspring assembly used on your car.)

Anyway, the air bag and steering wheel has to be removed to fix it.

You have spark on the coil wire but not coming from the cap. You replaced the cap right. Did you replace the rotor too. Sometimes the rotor burn in the center and the spark goes right thru it in to the distributor shaft.

Fig. 31: Chevrolet 2.8L VIN X 2BC - 1985-86 Federal models (click for zoom)



Fig. 32: Chevrolet 2.8L VIN X 2BC - 1985-86 Taxi Federal models



Fig. 33: Chevrolet 2.8L VIN X 2BC - 1985-86 Taxi Canada models



Fig. 34: Chevrolet 2.8L VIN X 2BC - 1985-86 Taxi California models



Fig. 35: Chevrolet 2.8L VIN W TBI - 1985-86 Canada models


Hope this help (remember rated this).

Have you located your local Cummins Dealer for this. It should be no issue for them to copy/email a diagram. Good luck...

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528004ba7d

Hope this helps

1984 thru 1986 same body and frame..