Diagrams of fuse boxes and relays – Porsche 944

Applies to vehicles manufactured in the years:

1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991.

Type 1

Number	Amperes [A]	Description
1	8	Low beam (left)
2	8	Low beam (right)
3	8	High beam (left)
4	8	High beam (right)
5	16	Additional high beam
6	8	Stop lights, emergency blinker, hidden headlight motor
7	8	Clock, interior lighting, cigar lighter, radio, trunk lighting
8	8	Direction indicators, brake warning light
	8	Stop lights
9	8	Reversing lights, rear wiper, exterior mirror motor, turn signals
10	16	Fresh air fan
	16	Heated exterior mirrors, rear window defogger control cable
11	8	Windshield wipers, washer pump
12	8	Number plate lighting, trunk lighting, ashtray lighting, instrument and switch lighting, glove box lighting
13	8	Side marker (right)
14	8	Side marker (left), engine compartment lighting
15	16	Fog lights
	8	Front fog lamp
1	8	Retractable reflectors
	16	Hidden headlight motor
	8	Horn
2	16	Fuel pump, auxiliary air valve, control pressure regulator, frequency valve (oxygen sensor)
3	16	Radiator fan, antenna
	16	Blower motor
4	25	Rear window defogger
5	16	A / C condenser fan
6	25	Air conditioning compressor, fresh air fan
7	8	Rear fog light
8	25	The Power of the Window
	16	The Power of the Window
9	25	Lifting roof, engine unlocking the tailgate
	25	Blower, tailgate unlock motor
Relays
R1		Bridge (terms 56 – 56b)
		Headlamp and low beam
R2		Additional high beam
R3		Horn
		Blower
R4		Intermittent wiper
R5		Direction indicators / emergency flasher
R6		Cooling fan
		Horn
R7		Fuel pump
		Headlight washer system
R8		Air conditioning system (blower)
		Fog lights
R9		Headlight washer system
R10		Warning time with chime (USA)
		Catalyst Monitoring Control (Japan)
		Seat belt warning
R11		Rear window defogger and seat belts

 

Models with air conditioning have two additional relays under the dashboard next to the center console.

Number	Relay
1	Blower
2	Air conditioning system

 

Number	Relay
1	Radio
2	Power window

Type 2

Number	Amperes [A]	Description
1	25	Lifting roof, hatchback edition
2	25	Headlight motor
3	15	Horn
4	thirty	Power window
5	15	Fog lights
6	thirty	Seat adjustment
7	–	–
8	–	–
9	–	–
10	25	Cooling fan # 2
11	15	Cigarette lighter, hatchback edition, clock, fuel gauge, glove box interior lighting
12	–	–
13	thirty	Rear defogger, heated mirror
14	thirty	Fan
15	25	Cooling fan # 2
16	15	Headlight motor
17	7.5	Heating, air conditioning compressor clutch
18	7.5	Instruments, roof control, Hall receiver, chime
19	15	Stop light, cruise control
twenty	7.5	High beam (left)
21	7.5	High beam (right)
22	7.5	Low beam (left)
23	7.5	Low beam (right)
24	thirty	Wiper, Heated Wiper Nozzles, Windshield & Headlight, Washer Pump
25	25	Seat heating
26	–	–
27	–	–
28	25	Spare light
29	–	–
thirty	7.5	Left rear turn signal and side light
31	7.5	Left front turn signal
32	7.5	Right front turn signal
33	7.5	Right rear indicator and side light
34	15	Fuel pump, oxygen sensor
35	–	–
36	7.5	Radio
37	7.5	Headlight motor
38	7.5	Instrument lighting
39	7.5	Radio
40	7.5	Left parking light and right license plate light
41	7.5	Right parking and left license plate light, engine compartment light
Relays
A		Air conditioning compressor
B		Supporting the roof
C.		–
D		–
E.		–
F.		–
G.		Fog lights
H.		Fog lights
i		–
J.		Retainer X
K.		Headlight washing system
L.		Gong, catalyst
M.		Bridges
N		Power window
O		Buzzer
P.		Intermittent wipers
Q		Cooling fan
R		Fan
S.		Retainer 15
T.		Rear window and fuse test socket
U		Turn on the signal blinker
V		DME