87'Starter relay fuseable link wiring

[hakukamana]

This is one of my latest projects, 87' 4.0L Shortbed Pioneer 5 speed manual no AC. I started to look at the wiring harnesses and noticed that I had some cut and splice work going on. All of my other MJ's have a 4 tab starter relay, this one has a 3 tab relay. The relay also has the normal ringed fuse links but two of them have been cut  and one has a splice connector. The links are not identified on the insulation, so I am using the elimination technique.

 

The alternator, the battery, and the two org/grn double wire fuse links are in tact. The double green link, is cut with no indication of a cut wire in the harness that it would attach to, based upon the length. The double green link looks like a factory link. The single green link with the little rubber tab at the ring terminal, seems to be the 3 wire red feed to the ETR fuse, the fog lights(which I don't have) and the engine compartment light (which I don't have). That link to me does not look link a factory link. The question is whats the best way to determine what goes to what????? I have both schematics for the starter relay.

[Ωhm]

2 hours ago, hakukamana said:

All of my other MJ's have a 4 tab starter relay, this one has a 3 tab relay

If vehicle is NOT equipped with fuel pump ballast resistor, use 3 tab starter relay.

[hakukamana]

OK, Ohm this one a 87' has no ballast resistor, nor can I find wires in the harness usually Org/Blk with tab connectors to plug into the resistor. I looked at an 88' that I have and it shows the double green link as in picture (3) having one red wire on one link, and three red wires on the other. Do I have to many fuse links in the harness? (2) org/green links, one Green link to a 2 Red, maybe 3 red and One double green one side cut and one side connected to a red.

[Ωhm]

MJ_1987_Electrical_Manual_1.pdf

[BeatCJ]

Holy Cats! That's a thing of beauty. I'm going to have to see how it prints out. I think my laser printer here will feed 11x17 paper.

[hakukamana]

Ohm, thanks for the 87' manual, I have the 88' but didn't know if there were differences between the two. So this one should get your head scratching, fuse link J has a splice to the front lighting harness and says to the headlights. The wire was cut  at the link, I traced it to the front lighting harness connector.The 12ga red wire goes through the front harness in the engine compartment from the J fuse link and ends in the connector for the front light harness, and it connects to nothing, there is no receiving wire that the 12ga red wire routes to in the front lighting harnessconnector. I have no clue...…..

[87MJTIM]

That wire should supply constant power to the headlight switch.  

 

Do your lights turn on with the key off?  If not, a PO has eliminated the wire from the harness to the switch.

[Ωhm]

Connector in photo is C102. Should be C102_6 is for Fog Lamp relay, if equipped and should be Splice_H. Between the two (2) electrical manuals "Should be" might become a popular phrase for me.

[hakukamana]

Lights turn on with key off. Blinkers only work with key in the run position. I think that that 12ga red wire from the link might have been as Ohm indicated for the fog light relay. there are no wires in the loom for the fog lights nor are there any wires to support a fog lamp relay.