Porsche 928S - 1985 WIRE DIAGRAM Quick start guide

Wiring
97
Wiring Diagram Type 928 S
Model 85
PAGE 1
PAGE 2
PAGE 3
PAGE 4
PAGE 5
PAGE 6
PAGE 7
PAGE 6
LAMPS
BODY
INSTRUMENT CLUSTER + INDICATORS
VENTILATION AND HEATING
RADIO
ABS, ALARM SYSTEM, TRAILER COUPLING
ENGINE - DIGITAL ENGINE ELECTRONICS
CENTRAL ELECTRICAL SYSTEM
Current Flow Diagram 97-213

Wiring Diagram Type 928 S Model 85
The wiring diagram comprises eight individual wiring diagrams and one legend.
They are subdivided into coordinate fields.
Each individual wiring diagram comprises a part of the central electrical-system
within a dash-dot frame.
This part of the central electrical system shows all the lines and relays required for
individual wiring diagram.
The ground-connecting points are designated with “MP” and their location is
shown in a vehicle diagram.
The 1O-pole plugs on central electrical system are new. They are clipped together
from 3 parts.
Part 1, with the cast-on fastening pin, is the “initial element”.
Part 2 is the “module element”.
Both parts are identified by the digits 1 . . . 5.
Part 3 is a “coding element”.
The designations of the plug connections in wiring diagram for central electrical
system refer e. g. from A 11 , . . 15 to the “initial element”, from A 21 . . . 26 to
module element.
Printed in Germany-X, 1984

Wiring
97
Wiring Diagram Type 928 S
Model 85 page 1
LAMPS
Current Flow Diagram 97-215

Wiring Diagram Type 928 S Model 85 page 1
Wiring
97
LAMPS
A B c - cl E F G H
-- I K
DOOR CONTACT FOR
SIDE MARKER LAMP GLoVE~BofLAMP DOORCONTACTLEFT DOOR CONTACT RIGHT
GLOVE-BOX LAMP FLOOR l AMP LFFT ii%i-k SIDE MARKER LAMP TAIL LAMP UNIT RIGHT
1
2
-
3
-
4
-
5
s
7
3
I
0
I I ““‘y5 ; fi I ;m I nnnr
3 1;I r&i
- I _Irlnl.,nr I“,MP
HEADLAMP UNIT RIGHT
IIIII,,,,,.,: 8s In --
A/R CONDITIONING SYSTEM u u 2
COMPARTMENT OPERATING
STOP LAMP r
CLEARANCE
I----. III
IIIIIII I I
-,FLASH,NG LOWBEAM I‘D,‘D(ol
I^, ~~~ I I : 1 6 % le I I III1 I,’ I
AUXILIARYHIGHBEAM 11 1 1 1 1 1 1 ( 1 I j
I I I FUG TAAIL
1' '
-- I I I ‘, FOGLAMPSWITCH LAMPSWITCH c
L
I
FOLDING HEADLAMP RIGHT ’
I i ‘Cl7
II 13
P
MPU
I!
I I I I I I ““I L
-lll&lhl II
I I I I
II III I I
: 30 IPI I I I ’
k h 1&--$-$5y;/s; $2 i j I I II -33
II --Ilk I I II I I PI II
. -. , P71- 0I
II III, , “,,. ,,
I Iona11,~ ii II - I II I,,
I I
II II
FOLDING HEADLAMP LEFT I o&l I-- I I II III
l I 33 n1c,r- 7 I I I IllIll I III I II--35lI III - III -._
HEADLAMPUNITLEFT 4
CEN TUA L INFORMA TOR
!
m
!+I-,
1 I YELLOWTO
-L -
nl
2
III I I ,I
I x.1
I I I I I I I I
!!!!! !!!.I1 II
Ill,, 1,111, I,
3
I
1 I I I 111 I 11aJr-1
lllll IllIll ,I
111 111111111111 111111111111 1 ,, 3
4
2
I?
YELLOW2-- 7
^^^.^.-^--^
,~~;6[ -@;;;;t 1111 ~/T/ONs=~;;M~TR B7 J”3 I’“&x C”I”I”CLIL”
L LAMPUNITLEFT
BACKUP LAMP
DOOR CONTACT
MAKE.UPMlRROR MAKE-UPMIRROR
IAITC-C ,,nnI “““0 TD,,l,Y I I” 7
SEAT DRIVER’SSIDE
I I I
III GI.ZLZII”IIL,.,“,r,,I”,“<.LIYG lllSW/W< !!!!
r,- --- -&lb
SIDE MARKER LAMP
/i
r---.7( II u-
Ilam-l I SIDE MdRKER LAMP
WIRING HARNESS3
LAMP
A B
INTERIOR LAMP TRUNK LID 2
E
-
Printed in Germany-X, 1984
SW - BLACK
WS -WHITE RT - RED GN = GREEN GE - YELLOW GR = GRN BR = BROWN EL - BLUE LI - VlOLET
Current Flow Diagram

Wiring
97
Wiring Diagram Type 928 S
Model 85 page 2
BODY
Current Flow Diagram 97-217

Wiring Diagram Type 928 S Model 85 page 2
Wiring 97
13
14
15
16
AUXILIARY HEADLAMP KE YBOARO
HEATED WASHER JETS CLEANING CLEANING WASHER PUSHBUTTON SWITCH CANCELLING KEY CENTRAL LOCKING BUTTON
LEFT RIGHT PUMP PUSHBUTTON SWI TCH
PUMP PUMP WINDOW LIFT LEFT T BELT LAMP T CONTRDL UN/T CENTRAL LDCKlNG SYSTFM WINDOW LIFT RIGHT , .” T-0, ,” ^ c- ., ,,“,,
,-l.-l,L.n~.-lL A WY,.. OCKING
CONTROL -0TOR
11
12
13
14
15
.-
16
0.5 br
MlRROR ADJUSTMENT MOTOR. WINDOW LIFT CENTRAL LOCKING 2 c CENTRAL LOCKING MOTOR. WINDOW LIFT
^,...,^_ ^..r^ -.- - - --- “, .,^ ““, MIRROR
1 1
HATCHBACK
UNLOCKING
SWITCH RIGHT
REAR WIPER MOTOR REP. A WIPER RELEAY
IL
0.15qnlsw
r
! 2.5 SW qELAY1;/;~0, ~.,,?,, . w,? 1c11 ~a UI,,, 1.1: -. y,,, ~FII&I~~ @ I,h’-d ‘r
I I
IhIlL ii iil’b II I I I I I I I L-I
+t-1.25br--p
I I I I
POTENTIOMETER L ._
022
0.5qe --- ~-~
023~
I--
I II I
_
III TIllIll, I II I I
012-l I II III1 I I
r .-.
PUSHBUTTON r- - -1
l--E-- 1 MOTcJR II
i!bii
P56 s n
L. -EL
__
XIX
HEADLAMP II 2
.
WIPER INTERVAL
II
AUXILIARY CLEANING SYSTEM ‘-2 VERSIONS
II -
CLEANING PUMP M 553 - USA
I I I
^“- ‘II Illrke I
UNMARKED LINES ARE WIRING HARNESS 3
FANFARES
I -_
A 0 C II E F G H I K
Printed in Germany-X, 1984
SW - BLACK WS - WHITE RT = RED GN - GREEN GE -YELLOW GR - GREY BR = BROWN BL = BLUE LI - VIOLET
Current Flow Diagram 97-217

Wiring
97
Wiring Diagram Type 928 S
Model 85 page 3
INSTRUMENT CLUSTER + INDICATORS
Current flow Diagram 97-219

Wiring Diagram Type 928 S Model 85 page 3
INSTRUMENT CLUSTER + INDICATORS
I
K
-EYBOARO
I r
SE TRANSMITTER
CHECK SWITCH CANCELLING EUTTC3N CENTRAL LOCKING BUTTON
T
BELT LAMP a l-Eillxl b
D
I
I i
4..r7P%r=rf$-F
pgr-t--- .
++
L 2
i;
/
c 3 TT
-
3
d
$5
2
28
4
2
LAMP SWITCH
SAFETY BELT
STARTER LOCKOUTANO
BACK1 JP LAMP SWITCH
-T---
Ks12
-
$Jyq=,,,
-822
LF15
o.5s:gmpi~
42’
m, g?b
sr r‘
fcl5 m ' nds
y"
K17 I
t
2
B
;
s
2
x
2
P
u)
$
s
9
[
:
<
WA TER 011
IIIII Ir0.5svWl I I
SWITCH TRANSMITTER TRANSMITTE,SWITCH TRANSMITTER TRANSMITTE,
r I
!b
6 w
THE-MOELEMENTSTHE-MOELEMENTS CATALYSTMONITORCATALYSTMONITOR
IllI,! ’ II]/!!
rO.Sbl
CENTRAL INFORMATION
9 17 9 5 7 15 16 19 22 23 25 10
1
FUEL
CONSUMPTION
WlTCHlNG “NlTII SWITCHING UNIT I
I II
Ill- u.30r- ! ! 05h1hI - --d”3li I l l
UNMARKED LINESARE WIRING HARNESS3
I
I II I I LEVEL FUEL TRANSMITTER 1
LITTON ODOMETER
RESETTING DEVICE
Printed in Germany-X, 1984
SW = BLACK WS = WHITE RT - RED GN = GREEN GE - YELLOW GR - GREY BR - BROWN BL = BLUE LI = VlOLET
Current Flow Diagram

Wiring
97
Wiring Diagram Type 928 S
Model 85 page 4
VENTILATION AND HEATING
Current Flow Diagram 97-221

Wiring Diagram Type 928 S Model 85 page 4
VENTILATION AND HEATING
A 0 C 0 E F G
-- Ii I K
AIR CONDITIONING SYSTEM
AC. CONTROL SWITCH SISTANCE GRO
-- FRESH AIR BLOWER
--~- ~-
CIGAR LIGHTER
OIL TEMPERATURE
SWITCH TORQUE
CONVERTER
--.-
BACK WINDOW
SEPA RA TING
PLUG-SEATADJUSTMENT RIGHT
----
SEATHEATER AN
SEATADJUSTMENT
MIRROR IMAGE ENTRAL ELECTRICAL
SPORTS SEAT
AUXILIARYAIR CONDITIONING SEAT HEATER SWITCH TIME DELAY RELAY
BLOWERSWITCH
LONGITUDINAL
ADJUSTMENT
IMPACT WALL SEATHEIGHT
2 WA Y SW/ TCH
CIRCULA.lNG AIR FL SEA T HEIGHT
ADJUSTMENT REAR
4.WAY SWITCH
SEATBACKREST
2 WA Y SW/ TCH
BLOWER MOTOR
Printed in Germany-X, 1984 SW - BLACK WS -WHITE RT = RED GN - GREEN GE = YELLOW GR = GREY BR - BROWN BL - BLUE LI = VIOLET
Current Flow Diagram

Wiring
97
Wiring Diagram Type 928 S
Model 85 page 5
RADIO
Current Flow Diagram 97-223

Wiring Diagram Type 928 S Model 85 page 5
Wiring 97
RADIO
SEPARATING POINT
KS 60 BASIC EQUIPMENT BOOSTER
\
2.5 llr n 2.5br
- I c ~I I I I CONSTANTPOSITIVE -
0.5rt
I
jED IN R= k o’~~;~fj-fj~lGHT ,
FUSE INSTAL
ANTENNA
AMPLIFIER
SUPPRESSION COIL
ANTENNA ELECTR.
POSSIBLE CONNECTION
. . .
II .I “,“,“,DooRLEFT’
““-.” 0.75br-DC ., ^,-
I ANTENNA AMPLIFIER I -tf I 11 “v
71 FADE REGl./--LA7OOR ‘ED
1 E$TEN%,NCABLE, 11 ! c- -%=j+1 I+?-! ! “O
1 1 REGULATOR 1 1
1 928 645 183 00
; ANTENNA
WINDSHIELD
I I IS I hl I I I I2 $1
iI EXTENSION I I
ISI I I
I I I I I
I I
II
IP
PARTS IrrrhlO.928645.612.03
II 121 I V‘i I4 $1
z-l
, ANTENNA
I INTERFERENCE
III?IIIIII Ili=H=l-II11111111
II-t-f
EXTENSION
ONLYFOR RL II
INTERFERENCE
SEPARATING PLUG DOOR LEFT SEPARATING PLUG DOOR RIGHT
HI-FI SYSTEM
WIRE CONNECTOR REAR LEFT REAR RluGHT
SPEAKER UNITDOOR LEFT
4
FOR FADE REGULATOR OR BOOSTER
EPILLAR LEFT
LOWER RANGE /WOOFER/
*e 2
REIR$F
MIDDLE RANGE SPEAKER
8Ks6g OklDDLE RANGESPEAKER 1 -SpEAKER pLuG REAR LEFT “”
SPEAKER PLUG REAR RIGHT brhn-q&s
Printed in Gemlany -X, 1984 SW - BLACK WS - WHITE RT= RED GN - GREEN GE - YELLOW GA = GREY BR - BROWN BL = BLUE LI - VIOLET
Current Flow Diagram

Wiring 97
Wiring Diagram Type 928 S
Model 85 page 6
ABS, ALARM SYSTEM, TRAILER COUPLING
Current Flow Diagram 97-225

Wiring Diagram Type 928 S Model 85 page 6
Wiring
97
ABS, ALARM SYSTEM, TRAILER COUPLING
r3 I I I , I I 1 . I
ALARM SYSTEM ABS SYSTEM
CONTROL “NIT
n TD,l",Y I ,n,nrw
CENTR. INFORM. YELLOW.12 ,,ows,rt7 CONTROL UNIT ,
1
---
DOOR CONTACT
~
,,I”,“,\ LIYL”C,\
I-
rfr
‘%r ‘11
t n
&kg 22
knmy’ d d
6 dd
J,ts 183
ii===
- H”IR-i,;Tjq
-. - -..
r- -.-.
I
- I- I
II’ ! !!!! II II I I
! ! l.Obr-
l-i / i i / / / / / / / / i I II k!t
p I e
L’&
5 2 z.
&/=
-o.stN-
.,.-
8
myILJT
2
6dd
rhwlw
CENTRAL EL.
SYSTEM
I I I v
I
I I I I II
I
F5L
&-I
b +
2 k
s E
: 2
?
I
2
t=.j
9
KS4
.-
r
2 t
0
2 i
I I
&I -. . .
YE%
2 2 2 2 g!J-i . .
; uil$jyy
u
llc: -
&
3
G
, !I II II I E
“,l J “I, I I
( 0.75brlrt II I
U.13 br - I
I I
(-0% 0.75br _-_
8 -
n-.I[3 I 1Ohr
I (
GROUND
s 25 “11
CONNECTION
I c
pm-lIA641
EZF-CONTROL UNIT-25
I
c
m DOOR CONTACT LEFT. RIGHT 0,5br/wr- I
LH-CONTROL UNIT.18 &II-h - LAMP C&ECK UNI T.1
I L-U . .. . .. 1 I.811 I >c-.. u
IGNITIO-SWITCH-15 _ PLUGA -CHAMBER 11. I.?
‘Esr&oN ~O”NO?ik;ON -cL,r 1 ’
CENTRAL ELECTRICAL SYSTEM ,-R FLASHER RELAY-C2
IJ641
ALTERNATOR~fil
I
TRAILEdCOUPLING
SEE CENTRAL ELECTRICAL SYSTEM
CENTRAL ELECTRICAL SYSTEM
.-.-.-.-. 11 Ks4 , ,Ks161 11 SOCKET, TRAILER COUPLING
c
f+inted in Germany-X, 1984 SW = BLACK WS = WHITE FIT = RED GN = GREEN GE-YELLOW GR - GREY BR = BROWN BL = BLUE LI - vl0LE-r
Current Flow Diagram 97-225

Wiring 97
Wiring Diagram Type 928 S
Model 85 page 7
ENGINE - DIGITAL ENGINE ELECTRONICS
Current Flow Diagram 97-227

Wiring Diagram Type 928 S Model 85 page 7
Wiring
97
ENGINE - DIGITAL ENGINE ELECTRONICS
u .-. -1 .c..--.A- ~ u _-A_ c I r I u I I I I 8 I--_ - ”
_- --..-
INJECTION VALVES
1,
1 SPARK PLUGS IGNlTlON DISTRIDUTOR I
LH CONTROL UNIT CYLINDER 1 0’1 INT)EH 2 CYLINDER 3 CYl INDER 4
RPMANDREFERENCE C:Yl INOEH 5 CYI INDER 6 CYLINDER 7
r- - r--l -- -- -- -1
DISTRlBUTOh
0,75br/rt
PERFORMANCE 3 ALTERNATOR WITH REGULATOR
I---.
-
IGNITION COIL I
-- ---__-------- &J5,s ;&
g.$.:
0,75grl,b~- 1 yq hq
INTAKE-AIR
TEMPERATURE SENSOR
D- a,::xj < 1 1-K i
a I ( --K 1
TESTER OXYGEN SENSOR IDLE SPEED
REGULATOR
-0.75 br I
-07%lrI I
Ks.- _
1
II
toge-
&FL-; .~~l)
‘YAIR VALVE
TRIGGER UNIT 1TRIGGER UNIT 1
IGNITION TRIGGER UNIT nIGNITION TRIGGER UNIT n
TEMPERATURE SENSOR.
DOUBLE NTC
---
I- -A
AIR VOLUME METER
I-
ILL
I
I!--1
IL~,YI I ruN SWITCH
FTARTER BACKUP LAMP. GEAR THROTTLE VALVESWITCH ~*UZZERCoNTACT H”
THANGE INDICATOR SWITCH
T T rA, rn,n,n ,,*, vE KlCK DG’““’ “““~-r” u2:
AZ:
‘ 2!
3 “15
2 u2:
-.-E
-
:OUPLING TEMPOSTAT
TEMPOSTAT CONTROL UNIT SWITCH
p?J
IGNITION SWITCH.50
KS 12 El,5~,ll,,,~~
II:
Ll SurlbrA
I II
SPEEDOMETER I -: I
-0.5 SW /rt
I I
- 0.5 SW O.Sbrlrt 1
0.5br J
G:
lb
xv xxv XIV XVI
zrr, xx
44
KICK-DOWN LH JE TRONIC STARTER EZF FUEL PUMP 30
Ii5 30
i
CFNTRAl.
tLtClRlCAL SYSTLM : 3, GROUND _ 30
T
-. .-. . . . . ‘-r Ii
KS3
678
&f
SEPARATING P’-.LUG ALARMSYSTEM
PLUG BRIDGE SERIE?
LzLz-Lx u
\ I
PLUG CONNECTION FOR GEAR CHANGE
INDICATOR ON INSTRUMENT CLUSTER
MPIV
Printed in Germany-X, 1984
SW - BLACK WS - WHITE RT - RED GN - GREEN GE - YELLOW GR = GREY BR = BROWN BL - BLUE LI - VIOLET
Current Flow Diagram

Wiring
97
Wiring Diagram Type 928 S
Model 85 page 8
CENTRAL ELECTRICAL SYSTEM
Current Flow Diagram 97-229

Wiring Diagram Type 928 S Model 85 page 8
Wiring
97
CENTRAL ELECTRICAL SYSTEM
71
72
I3
74
7:
76
77
76
15
ac
05,
H24.
H24.
H23.
E 34.
(17.
E34,Cll.
C lb
.c 18
c 11
c 17
C 16
c 17
c 11
c18
cia
c 18
G5
G5
GS
FS
ES
E5
ES
E5
FS
F5 BACK WINDOW HEATER X- RELAY TURN SIGNAL FLASHER WINOOWLIFT WIPER INTERVAL CLEANING PUMP FRESH A/R BLOWER SUP7 RESSOR
E55 n 5
HZ4
F25
GS
Cl6 KICK DOWN
F 34
C8
C8
Cl6
C16. E8
F25. G5
ES
G5
c 17
c 11
FUEL PUMP
XXII
BACKUP LAMP
XXIII-XXIV
LIGHTCOMEINATION RELAY
--- -.-
H 28
G 34
H 21, Hbb
HZ8
F 23
HZ1
H 21
H26
H 27
HZ6
Cb
Cb
Cb
Cb
Cl
CS
Cb
cb
Cb
c5
c7
c5
cb
Cb
Cb
Cb
El6
cla
XlT =s- El6
XIX P =lJ- El6
G-OUND CONNECTION - A&S OF56
31
H69
30
rJ30 H68
- J30H69
x XT9
2 00 2
9 &zV)%h& z Z.
hrr’vJ>**L
-bQL.%nr a
*PG*r*JrSGr 9h.,,Ll s-2
-3-w
w G-2222iFtZfS
, / , , / , / / , , llllllll/l R , , , , , , / , , , Q
II II l/llll
n 121314152,** 2‘ 25 II 12127‘ l5212 232425 11I213I‘ 15II 22a 2125
11 12 la 14 n n 11 G 12 14 15 n 22 23 II
2 Q
~G3G3SSz?~S~ m -yl
000P04404z 2 2s -“w&“3wLl -..a
bXb.42X ~X~::~~r,loPcch ~O(?ExxxxEx 2 .F cf2
I3xss?s27 .FcQ2y~-=Q
Cl” (3xxc712~s?~ss -2 Y)e.---?w- v u sgS”,“,“S 2
x.2 2 x h’ h. lx.
OQ CT”,” u” ~,olz#lz
RZ;,“’
CT,“’ ABEREVtATIONS. INTERIOR I-XXV = RELAY
0 g.>- Z.B. Cl3 = PLUG LAYOUT All. = OUTPUT Ff2-77OMFUSE BYPASSES. EXTERIOR
51. = FUSE ZU. = INPUT TO F &SE Z.B. E 2 = FIELD IN W/R/NG DIAGRAM
A I rl I I- I n I c I r I * . ._
Printed in Germany-X, 1984
SW - BLACK WS = WHITE RT = RED GN - GREEN GE-YELLOW GR = GREY BR - BROWN BL = BLUE LI - VIOLET
Current Flow Diagram 97-229