no1knows908

I'm trying to keep the wiring clean so I want to use as much of the factory wiring as possible. When wiring the reverse lights all the writeups say to run a new set of wires from the yellow wire and green/black on the auto shifter harness to the reverse switch on the tranny. I received a nearly complete engine harness with the manual H22A I bought, so I stripped down the harness and removed the yellow and green/black wires complete with pins. When I looked at my car yesterday I noticed that the auto harness actually has a set of the same wires run to a shift solenoid close to where the manual reverse switch would be located. The location of the wires also match up on the shock tower connector, only difference is on the tranny side of the engine harness. Instead of the two separate circle plugs which are used on the manual, the auto has one square clip. So if I were to cut the square connector off and solder on the circle connectors what would have to be done on the dash side of the harness? The thing that I'm worried about is that I'm not sure if the auto shifter sends a signal to the solenoids to shift into reverse or if those solenoids pick up when the transmission is in reverse and send the signal to the reverse lights in the same way the manual reverse switch does. Sorry if I lost anyone, I'm trying to explain this the best I can.

This is the manual reverse light plug.


Here is the plug on the automatic transmission.


The writeup says to run new wires from here to the reverse switch.


Here is the wiring diagram if it helps any.



Modified by no1knows908 at 2:27 PM 4/9/2008

no1knows908

Bump...

bboixtc

why don't you just try using the stock wires and see what happens? I thought about the same thing, but I don't see the harm in running two wires. I already ran them anyway. Or why don't you use a volt meter and see where the wires go to.

mgags7

Looking at the schematic page, you can see that the two are in parallel, that means if either one is "closed" (closed circuit, aka connected), then the lights will come on.

Try connecting the manual reverse switch to the yellow and green wires there on the AT connector, it isn't gonna kill you to try it, the reverse switch is a simple switch, either connected or not.

no1knows908

Yea, I was going to just try it and see what happens but I was just curious as to if anyone had already attempted this?

bboixtc

Here you go: That should tell you where the wires go.

At this time you can do the necessary wiring changes. Cut open the transmission wiring harness. Cut off both counter shaft speed sensor connectors, the torque lock-up connector, and up/down shift connector. Leave the torque lock-up wires (yellow and green/black) exposed and re-tape the harness. These wires will be hooked up to the reverse light switch on the transmission later. In the passenger side kick panel, seperate the red/white and white/black wires from the connector that went to the Transmission Control Module. Extend these wires to the auto shifter harness and hook them to the yellow and green/black wires. Connect the red/white wire to the yellow and the white/black wire to the green/black for the reverse lights. Re-install passenger side kick panel. Unplug both clutch switch connectors from the assembly. Connect both solid black wires together, extend them and connect to the black wire in the shifter harness. Extend the black/pink wire and connect to the pink wire in the shifter harness. Extend the black/green wire to the shifter harness and install a female spade connector to the end of it. Connect this wire to terminal 86 on a 30amp relay. Cut the connector off of the big black/white and black/red wires that are beside the shifter harness. Install a female spade to the end of the black/red wire and hook it to terminal 87 on the relay. Install a female spade to the end of the black/white wire and add a 6 inch section of wire in with it. Connect the black/white wire to terminal 30 on the relay. Install a female spade on the 6 inch section of wire and connect to terminal 85 on the relay. While you have the passenger side disasembled remove the cover plate for the ECU and unbolt and change to the manual ECU, this is straight forward, everything plugs in just as it came out.

(Write up from Superhonda)