Chimaera wiring-
Chimaera wiring-
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Tyre Tread

Original Poster:

10,626 posts

233 months

Saturday 11th August 2018
quotequote all
Anyone know what the flyleads with the green relay socket was originally for please?

I want to use the feeds to supply a permanent live for my sat nav if possible but don't want to tap into them if they ultimately feed into something vital like the ignition circuit.

I can't read the wiring diagram in my copy of the Steve Heath book because either its blurry and small or my eyesight is worse than I thought.


The wire colour listing in the book don't help much either

Steve_D

13,799 posts

275 months

Saturday 11th August 2018
quotequote all
It's for aircon.
Let me have the wire colours and I will identify their function and which fuses the live comes from.

Steve

Tyre Tread

Original Poster:

10,626 posts

233 months

Sunday 12th August 2018
quotequote all
Thanks Steve:

Wires are :
Brown
Black
Black/Red
Green/White
Purple/Black
Black/Green

Steve_D

13,799 posts

275 months

Sunday 12th August 2018
quotequote all
Tyre Tread said:
Thanks Steve:

Wires are :
Brown
Black
Black/Red
Green/White
Purple/Black
Black/Green
Nothing on there will work for you. Your brown wire, I think, should be brown/orange in which case it will be live but is coming direct from the ECU relay so no suitable fuse.

In the footwell there will be another A/C relay base (yellow) with the following wires
Brown/green from fuse 7
White/green
Black/slate
Black/green

Best of all fuse 7 does not appear to be doing anything else so will fit the bill perfectly.

Steve

ETA PM me if you want a copy of my wiring diagram.



Edited by Steve_D on Sunday 12th August 09:15

Tyre Tread

Original Poster:

10,626 posts

233 months

Sunday 12th August 2018
quotequote all
Steve_D said:
Nothing on there will work for you. Your brown wire, I think, should be brown/orange in which case it will be live but is coming direct from the ECU relay so no suitable fuse.

In the footwell there will be another A/C relay base (yellow) with the following wires
Brown/green from fuse 7
White/green
Black/slate
Black/green

Best of all fuse 7 does not appear to be doing anything else so will fit the bill perfectly.

Steve

ETA PM me if you want a copy of my wiring diagram.



Edited by Steve_D on Sunday 12th August 09:15
That's great. Thanks. thumbup I'll have a look later today.

I moved all the trailing fuses and the ECU when I moved the battery to the boot. The ECU lives just under the globebox (Gloveflap?) and the trailing relays are under the dash.

Steve_D

13,799 posts

275 months

Sunday 12th August 2018
quotequote all
Tyre Tread said:
That's great. Thanks. thumbup I'll have a look later today.

I moved all the trailing fuses and the ECU when I moved the battery to the boot. The ECU lives just under the globebox (Gloveflap?) and the trailing relays are under the dash.
If that yellow relay base is no longer ideal being under the dash let me know and I will find you a nice supply to tap into somewhere else. let me know which unit (fusebox, ECU etc) is closest.

Steve

Tyre Tread

Original Poster:

10,626 posts

233 months

Sunday 12th August 2018
quotequote all
Thanks again Steve.

The yellow relay socket was right there under the dash so I used that and in the end opted for a split fly lead of 2 USB sockets which emerge just above the centre air vents so they can be tucked out of the way.

I wanted to run a cable up the side of the screen and along the top behind the mirror but couldn't get the cable behind the trim.

I have a lot less skin on the back of my left hand than I had this morning.

While I was looking at the relay board I remembered that I'd removed the courtesy light relay as it had never worked since I git the car and looked like it had overheated at some point. I tried plugging in a replacement I'd bought some time ago but it didn't work. Not to worry as I have the lights in the doors if I need them.

Thanks again Steve. Your help made the job much easier and reduced my worry levels of frying the ECU somehow if I got it wrong.

I also managed to get the radio working again and the lights on warning buzzer which had also stopped working. Weird thing is all I did was out the meter on each of the terminals to check for current and it popped into life.

Ya gotta love TVRs!

Loubaruch

1,380 posts

215 months

Sunday 12th August 2018
quotequote all
A simple fix to enable the internal lights to illuminate when a door is opened:

http://www.bertram-hill.com/courtesy-light.html

OK, no delay on the lights but also no troublesome light delay relay in the circuit.

Loubaruch

1,380 posts

215 months

Sunday 12th August 2018
quotequote all
A simple fix to enable the internal lights to illuminate when a door is opened:

http://www.bertram-hill.com/courtesy-light.html

OK, no delay on the lights but also no troublesome light delay relay in the circuit.

Hedgehopper

1,542 posts

261 months

Monday 13th August 2018
quotequote all
As said before, it's an air-con socket.