sierra wiring loom

[steve8274]

hi all.
just looking at my loom now which came from a 1992 1.8cvh sierra.
have labelled up few wires but was just wondering what people have kept and what people have removed.
a nice list would be nice and easier as i am a complete novice when it comes to car wiring.
also does anyone have a list of relays in sierra fuse box and their position number. not in my haynes manual.
any help appreciated
thanks
steve

[twinturbo]

I plan to build from scratch, there is too much junk in the sierra loom.

TT

[David_17]

Me too. Much easier and neater.

[steve8274]

i wouldnt know where to start if doing from scratch so this is simplest way for me.
just need a list of what relays are in sierra fuse box and what their position is
thanks
steve

[twinturbo]

there was a simple loom diagram done a couple of weeks back.

I can list the relays and their function ( althought that changes sometimes ) their location may be in the main fusebox or under the dash.

If you want simple then scrapping the sierra loom and building from scratch realy is the way to go.

TT

[deezee]

I used up the old Sierra loom as
a) It costs nothing
b) It has all the correct plugs
c) Its got loads of relays and fuses
d) All the wiring is the correct thickness

BUT....
a) It takes time to shorten all the wiring
b) Working out the feeds in the fuse box took me 3 days!

[davidimurray]

The simplified wiring diagram can be found here - http://www.haynes.co.uk/forums/showt...?t=4763&page=3

I attacked my sierra wiring loom the other night to make my custom loom as per my diagram in the link above.

In total - from the sierra loom I saved -

Reverse switch connector and wiring
Brake reservoir level connector and wiring
Starter Wiring
Alternator Wiring
Column Switches & Ignition key swithc wiring.
70A master Relay
Flasher relay
Changeover relay

I cut the wiring as far back as I could in the loom.

[steve8274]

thanks
almost coming clear now. bit more studying to do but i do agree with deezee with sierra loom.
the diagram has helped a lot
the relays i want to know about are the ones in fuse box that was in engine compartment. if i knew what each one did,i could eliminate some of them straight away
thanks again
steve

[twinturbo]

I - Ignition
II - Daytime Running Lights
III - Headlamp Wash Wipe
IV - Heated rear Window
V - Wiper Intermittent
VI - Courtesy Light Delay
VII - ABS System
VIII - Auto KickDown
IX - Intermittent Rear Wiper
X - Main Beam
XI - Engine Manaement
XII - AntiTheft/Auto Inhibit
A - Engine Run
B - Aux Daytime Running/Rear Fogs
C - Horn
D - Engine Mgmt
E - Rear Fogs
F - Dip Beam
G - Heated Seats
H - Front Fogs



TT

[steve8274]

thank you
can see lots i can get rid of straight away.
slightly away from topic, does the sidelights have to come on straight away now when you turn ignition for IVA. or have i just seen this on someones build pics?
steve