Sierra wiring.
This is a collection of documents I put together to help me with wiring my car.  It is based on the Haynes manual for early base model Sierras, and uses the Haynes reference as a way of linking multiple items (e.g. the individual wires to the instrument multiplug)

Paul Wilkie October 1997

Fusebox details

No.		Relay									
1	I	Driving Lamps		W/R	W						
2	II	Fog Lamps		Bk	W	Bk/Y	S/Bk				
3	III	Heated rear window		Bk	Bk	Bn	Bk/B				
4	IV	Auto gearbox inhibitor		Bk	Bk/B	Bn/W					
5	V	Horn		R	Bn/W	R		Only fitted with centre push horn switch			
6	VI	Dip beam 	present	R/B	Y	Y	B				
7	VII	Ignition	present	B/W	R/B	B		Bk powers F1-5 bus			
8	VIII	Headlamp wash	present	B/Y	Y	B	B				
9	IX	Seat belt warning	present	B/W	B/W link	B/W		Doesn't match Bn,Bn/Gn,Bk/Y shown in manual			
10	X	Wipers	present	Bn/Y	Bn/W	Bn/Gn	Bk/Y				
		Flasher relay	present	Bk/R	Bn	Bk/W					
		There are 2 main relay buses - power between 1,2,4,&5, and Earth between 7 - 10									
											
No.	Size	Fuse									
3	10	Wipers									
4	30	Heater, Windscreen washers									
8	10										
9	15	Flasher,stop,reversing lamp									
13	10	Hazard warning,Horn									
14	10	LH High beam									
15	10	RH High beam									
16	10	LH Dip beam,rear fog									
17	10	RH Dip beam									
18	10	LH side, license									
19	10	RH side

Lighting
	Rear Lights										
	92	Rear LH Indicator	Bk/W				mini windscreen wipers				
	92	Rear LH tail	S/Bk				Sierra	Mini			
	92	Rear LH Stop	Bk/R								
	92	Rear LH Reversing light	Bk								
	92	Rear LH Fog	Y/R								
	93	Rear RH Indicator	Bk/Gn								
	93	Rear RH tail	S/R								
	93	Rear RH Stop	Bk/R								
	93	Rear RH Reversing light	Bk								
	93	Rear RH Fog	Y/R								
		 pairs joined at offside 	Bk/R	Bk	Y/R						
											
	Instrument cluster										
	82	Ignition warning	B								
	82	Seat belt warning	Bk/W								
	82	Panel light earth	Bn								
	82	Main beam warning	Bk/W								
	82	Fuel gauge	Bk/Y								
	82	Brake warning	Bn/Gn								
	82	Oil warning	Bn/Y								
	82	Fuel gauge	Bn/Bk								
	82	Panel light 	S/Y								
	82	Temperature gauge	Bn								
	82	Temperature gauge	Bn/W								
	82	Indicator warning	Bk/Gn								
	82	Indicator warning	Bk/W								
											
	Multifunction Switch										
	102	Horn	R/Y								
	102	Horn	R/Y								
	102	Flasher L	Bk/W								
	102	Flasher common	Bk/W/Gn								
	102	Flasher R	Bk/Gn								
	102	Hazard warning	Bk/R								
	102	Hazard warning	Bk								
	102	Lights	Bk/Bn								
	102	Lights	W/Bk								
	102	Lights	Y								
	102	Lights	W								
	102	other	Bk/B								
											
	Warning Lamp										
	116	1	Bk/R								
	116	2 Brake wear	Bn/Y								
	116	3 Low coolant	Bn/R								
	116	4 Low washer	Bn/W								
	116	5 Low oil	Bn/Bk								
	116	6 Low fuel	Bn/Gn								
	116	7 Seat belt warning	Bn/Gn								
											
Inverted wiring list
(colour code to device)
B	Alternator	1	
B	Ignition Relay	80	
B	Dip Beam relay	24	
B	Ignition warning	82	
			
B/W	Elec choke	33	
B/W	Ignition Relay	80	
B/W	Alternator	1	
			
Bk	Inhibitor relay	3	
Bk	Light / wiper switch	94	
Bk	Washer switch	118	
Bk	Battery	9	
Bk	Elec ignition	42	
Bk	Rear LH Reversing light	92	
Bk	Rear RH Reversing light	93	
Bk	Hazard warning	102	
			
Bk/B	Washer switch	118	
Bk/B	Inhibitor relay	3	
Bk/B	Ignition switch	81	
Bk/B	other	102	
			
Bk/Bn	Lights	102	
			
Bk/Gn	RH front indicator	48	
Bk/Gn	RH front indicator repeater	49	
Bk/Gn	Wiper relay	120	
Bk/Gn	Elec ignition	42	
Bk/Gn	Rear RH Indicator	93	
Bk/Gn	Indicator warning	82	
Bk/Gn	Flasher R	102	
			
Bk/R	Distributor	25	
Bk/R	Elec ignition	42	
Bk/R	Flasher relay	50	
Bk/R	Heater blower motor	73	
Bk/R	Heater blower switch	74	
Bk/R	Starter Motor	109	
Bk/R	Stop lamp switch	110	
Bk/R	Stop lamp switch	110	
Bk/R	Rear LH Stop	92	
Bk/R	Rear RH Stop	93	
Bk/R	Hazard warning	102	
Bk/R	1	116	
			
Bk/W	LH front indicator	46	
Bk/W	LH front indicator repeater	47	
Bk/W	Flasher relay	50	
Bk/W	Rear LH Indicator	92	
Bk/W	Seta belt warning	82	
Bk/W	Main beam warning	82	
Bk/W	Indicator warning	82	
Bk/W	Flasher L	102	
Bk/W/Gn	Flasher common	102	
			
Bk/Y	Ignition switch	81	
Bk/Y	Wiper relay	120	
Bk/Y	Wiper speed control	122	
Bk/Y	Wiper Motor	123	
Bk/Y	Fuel gauge	82	
Bk/Y/R->BK/B	Heater blower switch	74	
			
Bn	Low brake fluid warning	95	
Bn	Low washer fluid warning	98	
Bn	Temperature sensor	23	
Bn	LH front indicator	46	
Bn	LH front indicator repeater	47	
Bn	RH front indicator	48	
Bn	RH front indicator repeater	49	
Bn	Flasher relay	50	
Bn	Heater blower lamp	72	
Bn	Horn switch	77	
Bn	Number plate light	91	
Bn	Elec ignition	42	
Bn	Wiper speed control	122	
Bn	LH headlight	63	
Bn	RH headlight	64	
Bn	Wiper Motor	123	
Bn	Heater blower switch	74	
Bn	Panel light earth	82	
Bn	Temperature gauge	82	
			
Bn/Bk	Fuel gauge	82	
Bn/Bk	5 Low oil	116	
			
Bn/Gn	Temperature sensor	23	
Bn/Gn	Fuel sender	58	
Bn/Gn	Handbrake warning	62	
Bn/Gn	Oil pressure warning	103	
Bn/Gn	Heater blower motor	73	
Bn/Gn	Heater blower switch	74	
Bn/Gn	Low brake fluid warning	95	
Bn/Gn	Brake warning	82	
Bn/Gn	6 Low fuel	116	
Bn/Gn	7 Seat belt warning	116	
			
Bn/R	3 Low coolant	116	
			
Bn/W	Horn switch	77	
Bn/W	Horn relay	76	
Bn/W	Low washer fluid warning	98	
Bn/W	Oil pressure warning	103	
Bn/W	Inhibitor relay	3	
Bn/W	Wiper relay	120	
Bn/W	Wiper Motor	123	
Bn/W	Temperature gauge	82	
Bn/W	4 Low washer	116	
			
Bn/Y	Heater blower motor	73	
Bn/Y	Heater blower switch	74	
Bn/Y	Low brake fluid warning	95	
Bn/Y	Wiper relay	120	
Bn/Y	Oil warning	82	
Bn/Y	2 Brake wear	116	
			
Gn	Coil	79	
Gn	Coil	79	
Gn	Wiper Motor	123	
Gn	Elec ignition	42	
			
Gn/Y	Distributor	25	
Gn/Y	Elec ignition	42	
			
R	Alternator	1	
R	Horn relay	76	
R	Alternator	1	
R	Battery	9	
R	Starter Motor	109	
R	Wiper Motor	123	
R	Horn relay	76	
R	Ignition switch	81	
R	Light / wiper switch	94	
R(fused)	Battery	9	
			
R/B	Dip Beam relay	24	
R/B	Ignition Relay	80	
			
R/Y	Horn	75	
R/Y	Horn	102	
R/Y	Horn	102	
			
S	Number plate light	91	
S	Light / wiper switch	94	
			
S/Bk	LH headlight	63	
S/Bk	Rear LH tail	92	
			
S/Gn	Heater blower lamp	72	
			
S/R	RH headlight	64	
S/R	Rear RH tail	93	
			
S/Y	Wiper speed control	122	
S/Y	Panel light 	82	
			
W	LH headlight	63	
W	RH headlight	64	
W	LH headlight	63	
W	RH headlight	64	
W	Lights	102	
			
W/Bk	Light / wiper switch	94	
W/Bk	Lights	102	
			
Y	Dip Beam relay	24	
Y	Dip Beam relay	24	
Y	LH headlight	63	
Y	RH headlight	64	
Y	Lights	102	
			
Y/R	Rear LH Fog	92	
Y/R	Rear RH Fog	93