Thread: Addition connectors on 4HP22 automatic transmission wiring loom

Originally Posted by twr7cx

Any ideas on what these two additional connectors are for (two single connection black tab connectors)?

The photo is of the wiring loom that goes to the 4HP22 automatic transmission in the TD5. They were not connected when the automatic transmission was removed.

If you post up what the wire colours are we might be able to work it out.

I'm guessing the harness has plugs for an interlock solenoid or some other feature that is unused on the AU D2's.

cheers
Paul

I think they are for a V8 as they have an extra temp switch in the transfer case that the TD5's don't have sot there spare.

They look like the CDL indicator/warning dash light switch connectors. Has yours a CDL?

Originally Posted by OffTrack

If you post up what the wire colours are we might be able to work it out.

Black/green and black.

Originally Posted by northiam

They look like the CDL indicator/warning dash light switch connectors. Has yours a CDL?

Yes, it does. I would imagine that the CDL sensor wires would be part of the transfer box wiring loom not the automatic transmission though.

Originally Posted by twr7cx

Black/green and black.

There is a black/green that runs from the position selector switch back to the BCU black with a color tracer means that it's an earth wire that is switched by an ecu. Black is always an earth. There is a black that runs from the position switch to an earth header, but this is a 800mm run from the position switch. These wires are present on both td5 and v8.

That said there doesn't appear to be anything on the wiring diagrams that corresponds to those two plugs. They might be for diagnostic purposes.

Cheers
Paul