1970 satellite a833 swap back up light harness issue

[Sportfury70]

So I’m almost done with my a833 swap. 1970 satellite with a new magnum 360.

I got the harness from brewers, but did not get the instructions (or lost them). Pulled the 3 prong harness from the auto trans and plugged the a833 harness in to the dual black and black white trace connector at the bulkhead, and plugged the jumper into the starter relay.

When I turn the key, nothing happens. Can jump the car with a screwdriver at the relay.

I swapped the wires in the connector for the backup harness, and now the starter engages in the key run position.

Swapped them back, and tried putting the trans in reverse with the key in run, and the relay clickes rapidly.

I’m scratching my head here. Anyone have instructions for this harness? I do not have a neutral safety switch, is that what the jumper is for?

 

[R413]

They had a clutch switch starting in 1970

 

[BLK 68 R/T]

So I’m almost done with my a833 swap. 1970 satellite with a new magnum 360.

I got the harness from brewers, but did not get the instructions (or lost them). Pulled the 3 prong harness from the auto trans and plugged the a833 harness in to the dual black and black white trace connector at the bulkhead, and plugged the jumper into the starter relay.

When I turn the key, nothing happens. Can jump the car with a screwdriver at the relay.

I swapped the wires in the connector for the backup harness, and now the starter engages in the key run position.

Swapped them back, and tried putting the trans in reverse with the key in run, and the relay clickes rapidly.

I’m scratching my head here. Anyone have instructions for this harness? I do not have a neutral safety switch, is that what the jumper is for?

How you had it the first time I’d guess is right. There should be an unused tab on the bottom right of the starter relay if you originally had an auto and swapped everything over to manual. Try grounding that tab and then start ir normally.

 

[BLK 68 R/T]

The starter relays are different between manual and automatic.

Edit they are different for 68-69. 70 is the same.

 

[Sportfury70]

I grounded that tab on the relay and still nothing. If I connect that tab to positive on the battery it turns over from the relay.

It’s gotta be something simple!

 

[BLK 68 R/T]

I grounded that tab on the relay and still nothing. If I connect that tab to positive on the battery it turns over from the relay.

It’s gotta be something simple!

I’ll have to consult my FSM and see exactly where the wires should go. It seems you are missing a ground somewhere to me for it not to start. Little fuzzy to me but I seem to recall the wires from that switch are for backup lights only in 70. There was reverse lockout linkage and a neutral safety switch on the clutch pedal that made it so you had to have the transmission in neutral and the clutch pedal depressed in order to start it. I doubt you have all that in a swap. So it shouldn’t be too complicated.

 

[R413]

You likely have the wrong combination of parts that are not working together.

1970 starter relays are the same for manual and auto. They used a clutch switch it connected to the starter relay where the neutral safety switch wire connects.

 

[Sportfury70]

Is the clutch switch normally open, and closes when the clutch is depressed, goi mg to ground? Should be easy to bypass.

After tinkering this morning, it seems like I need to jump the bottom right starter relay terminal to the start wire in the column (or some other momentary +) work.

I can start it easily from the relay.

I’m beginning to wonder if by coincidence the start switch in the column went bad.

 

[BLK 68 R/T]

Is the clutch switch normally open, and closes when the clutch is depressed, goi mg to ground? Should be easy to bypass.

After tinkering this morning, it seems like I need to jump the bottom right starter relay terminal to the start wire in the column (or some other momentary +) work.

I can start it easily from the relay.

I’m beginning to wonder if by coincidence the start switch in the column went bad.

The clutch switch grounds that tab on the relay. Do you even have a clutch switch on your pedal?

 

[Bird 426]

Can he start over and wire it like a '69?

 

[Sportfury70]

The clutch switch grounds that tab on the relay. Do you even have a clutch Witch on your pedal?

View attachment 2018072

I do not

 

[BLK 68 R/T]

Can he start over and wire it like a '69?

That’s what I think he was doing to begin with. All that should be needed is to wire it per 1970 with the exception of grounding that tab on the relay.

 

[Sportfury70]

That’s what I think he was doing to begin with. All that should be needed is to wire it per 1970 with the exception of grounding that tab on the relay.

Unfortunately grounding that tab on the relay does nothing