45 replies to this topic

[slack one]

much better . now i can have another go at the wiring. thanks Gary.

[UCgazman]

Just happy to contribute something useful

[Dr Terry]

Very impressive Garth.

 

Have you given any thought to an LX version.

 

It differs quite markedly from LH in the headlight dimming & emissions area, a well as little items such as the later type dual brake warning lights.

 

Dr Terry

[UCgazman]

I dont have an LX to examine wiring on, but if there's a wiring supplement or a Gregorys/SP schematic or similar floating around I'm happy to do it...

I might actually have something here (Max Ellerys I think?), I'll see what I can find

[Kevrev]

Here's a colour LH electrical diagram and a supplement with the differences in LX unfortunately only in black and white.

Hope this helps

Attached Files

•  LH WiringDiagram.jpg   75.88K   26 downloads
•  LX Wiring diagram.jpg   142.77K   20 downloads

[UCgazman]

Ok you twisted my arm

[Kevrev]

Ha Ha more of a gentle prod than an arm twist!

Let me know if you need help on wiring colours, I have a V8 LX I can use as a reference.

[Dr Terry]

OK I have found one error in the new UC diagram.

 

The brake fail switch should have 2 terminals & a wire going to the ignition switch. This also applies to the LX update (March 77)

 

The only diagram that I have seen with this drawn properly is in the HX supplement. It is only black & white, but the wiring is done in the same style as yours.

 

PM me your e-mail address & I will send you a copy. I don't know how to post it on the Torana forum.

 

Dr Terry

[Kevrev]

Hi Terry,

 

Is this the diagram you're referring to?

 

Cheers Kev

Attached Files

•  HX main wiring diagram.bmp   1.63MB   21 downloads

[Dr Terry]

That's the one.

 

That HX diagram shows both versions, handbrake & brake fail combined & separate. I don't remember ever seeing an HX without the 2 brake lights on the dash. Maybe it was a late decision to fit the separate brake fail to all HXs in production.

 

The LX didn't get it until around March 77.

 

Dr Terry

[UCgazman]

PM sent Dr Terry.

I'm gonna have a heap more wiring questions now I've started the LX version, but I might start a separate thread for that...

oops, should have refreshed the page first!

[Dr Terry]

PM sent Dr Terry.

I'm gonna have a heap more wiring questions now I've started the LX version, but I might start a separate thread for that...

 

From memory the only differences between LX & LH for its initial release was for the headlight dipper relay & stalk. Even the courtesy light in the hatch should mimic the boot light in a sedan.

 

For July 1976 the ADR27A GEAR was added, which should be same as the UC additions.

 

For ADR31 (Feb/March 77) when the brake lights were separated, that HX info will work.

 

Dr Terry

[UCgazman]

Version 1.1 with Brake fail warning switch fix

 

[Dr Terry]

OK, if you look closely at the HX circuit you can see that the 2-pin brake fail switch, isn't just a simple switch.

 

The 2 pins are joined inside the socket of the switch & then they are shorted to earth if & when the brake pressure drops.

 

The idea of this is that the light on the dash won't illuminate if the switch is left unplugged as a safety feature.

 

I have a clearer pdf of the HX diagram here if you need one.

 

Dr Terry

[Dr Terry]

I have found a good illustration of the LX headlight relay, with the pins numbered & the wire colours noted, I will send that to you.

 

I have also noted that the original LH one has missed the rear screen demister, maybe we should revisit the LH diagrams & tidy them up. Also the optional dash cluster is shown on a separate page, as is the a/cond, audio system & power antenna etc..

 

We probably don't need to worry much about the audio system ,but we do get a lot of questions on the forum relating to the tacho & optional instruments.

 

On that topic, AFAIK no UC model has a temp light, the gauge was standard even on the base model. On the UC diagram remove the word 'switch' from the engine.

 

Dr Terry

[UCgazman]

Yep you're right, that HX diagram was blurry so I used the gregorys one - which is wrong... I just checked the VB commodore manual as the later UC uses the commo style M/C with built in prop valve, and its also wired the same. Gimme 10mins and I'll upload version 1.2

[UCgazman]

Version 1.2 updated brake switch & temp sender

[Dark Side]

You have done an outstanding job and I cannot wait for the LX version. Just one question on the engine harness connector (top RH side, third wire down) does the pink wire splice into the yellow or brown wire? Keep up the good work.

[arrimar]

Yellow and pink join in the connector.

[UCgazman]

^Yep - it got pretty busy around that connector but I'll see if I can make it clearer on the next update