x770 BMW 318is 1998 E36 Electrical Troubleshooting Manual





X658
GROUND DISTRIBUTION
GROUND X10010
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.75 BR/OR
X1624
.5 BR/OR
.75 BR/ORN17
CRASH CONTROL
MODULE
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)
.35 BR/ORX770
2B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
A2w
INSTRUMENT
CLUSTER

X10010
X10009
.5 BR/OR
1 BR/OR X22
21X101825
. 75 BR/ORA104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
.35 BR/OR2.5 BR/OR13
EGS ONLY
.5 BR/ORX70
2M25
CRUISE CONTROL
ACTUATOR
(TEMPOMAT)
.35 BR/ORX121
1S32
CLUTCH SWITCH
WITHOUT EGS
.35 BR/ORX1660
3A835
TRANSMITTER
MODULE (EWS II)
.35 BR/OR
15A64
WIPER/WASHER
MODULE (LOW II)
X285
8 X35
X8996A32y
THERMOSTAT
D110
OBD II
CONNECTORX19527
5 .5 BR/OR .5 BR

6213.2 MULTI–FUNCTION CLOCK $%%

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B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
31
30
31
3131
.35 BR/GR
P90
FRONT POWER
DISTRIBUTION BOX
2 X10018
6 X1001730 X10018
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
18 9 14
816
.5 SW/GN
.35 GR/RT
START
1240.0
LIGHT SWITCH
DETAILS
6300.0 .35 SW/GN
X1070
N10
MULTI–FUNCTION
CLOCK
1217 X1070
X10012
1 X770
2 X770
GROUND
DISTRIBUTION
0670.4
X10010GROUND
DISTRIBUTION
0670.4
X276
31 F31
5AF235AF457.5A
30h
58g
FUSE DETAILS
0670.3
A4
CHECK CONTROL
MODULE
57 3 X1074
.5 WS/GN .5 WS/BL .5 WS/GR
345
LAC DATA CLC

318is83 .35 SW/GN
15 X1659
.5 WS/SW

6581.2 ON–BOARD COMPUTER (BC V)
POWER
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B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSORS7
COMBINATION
SWITCH
10) PROGRAM
MODUSA2w
INSTRUMENT
CLUSTER
1) FUEL
CONSUMPTION
A6000
ENGINE CONTROL
MODULE (DME)
30R30
TI
15
31
3131
.35 BR/GR.35 BR/RT.35 WS/GE.35 WS/VI.35 WS/SW
.5 WS/SW
P90
FRONT POWER
DISTRIBUTION BOX
6 X10017
30 X10018
FUSE DETAILS
0670.3
914
816
.5 SW/GN
.35 GR/RT
START
1240.0
LIGHT SWITCH
DETAILS
6300.0 .35 SW/GN
X1070
21 X16
N4
ON–BOARD
COMPUTER
RXD TXD
12 X1070
475
13 6 X1071
DATA LINK
0670.5
.35 BR/RT
9 X6000
24 X20
1 X770
2 X770
GROUND
DISTRIBUTION
0670.410 X32
1 X32
GROUND
DISTRIBUTION
0670.4
.5 WS/SW
10X276
30h
58g
316
14 X10017
26 X17
23
.35 BL/BR/GE
FUSE DETAILS
0670.3
X16
F235AF275A F457.5A
31
1
X10010X173X10012
CHECK
GROUND
DISTRIBUTION
0670.4
31
FUSE DETAILS
0670.3
.35 BR
15
X228
30
1
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II)
2 X10018
FUSE DETAILS
0670.3
8
F315A
X1071
14
PARK VENTILATION
WITH HR
6412.10
PARK VENTILATION
WITH IHKA E36
6412.20
TI .5 SW/WS/GE




COMPONENT LOCATION CHART
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COMP.8500.0 7100.0LOCATION DESCRIPTION
X740 . (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . under RH front seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1 03-3

X741 .
(4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . .
under RH front seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24-1
03-3
X742 . (2 PINS, YELLOW) . . . . . . . . . . . . . . . . . . . . . . RH front door in door at key lock assembly
X744 . (2 PINS, GRAY) . . . . . . . . . . . . . . . . . . . . . . . . . RH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-1
X745 . (3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . above RH footwell dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
X746 . (3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . RH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-1 01-1
X747 .
(2 PINS, YELLOW) . . . . . . . . . . . . . . . . . . . . . .
LH front door in door at key lock assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32-2

X748 . (3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . footwell, driver’s side, behind trim panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
X749 . (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . in upper LH front door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-3
X751 (2 PINS, WHITE) . . . . . . . . . . . . . . . . . . . . . . . . LH front door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-2
X752 . (2 PINS, GRAY) . . . . . . . . . . . . . . . . . . . . . . . . . LH front door in door at key lock assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-2

X753 .

(3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . .

LH front door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



01-1
X768 . (2 PINS, WHITE) . . . . . . . . . . . . . . . . . . . . . . . . in the engine compartment near LH headlight assembly . . . . . . . . . . . . . . . . . . . . . . . 08-2
X769 . (2 PINS, WHITE) . . . . . . . . . . . . . . . . . . . . . . . . in the engine compartment near RH headlight assembly . . . . . . . . . . . . . . . . . . . . . . . 08-2
X770 . (2 PINS, YELLOW) . . . . . . . . . . . . . . . . . . . . . . front RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1

X771 .
(2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . .
RH side of LH footwell LH side of IHKA Plenum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28-1

X772 . (2 PINS, WHITE) . . . . . . . . . . . . . . . . . . . . . . . . center console
X773 . (2 PINS, WHITE) . . . . . . . . . . . . . . . . . . . . . . . . center console
X774 . (1 PIN, GRAY) . . . . . . . . . . . . . . . . . . . . . . . . . . rear of engine compartment behind RH fresh air cowl
X778 . (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . under LH front seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-2 10-1
X779 .

(2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . .

LH side of glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25-1


X782 . (3 PINS, ORANGE) . . . . . . . . . . . . . . . . . . . . . . below RH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-2 10-3




COMPONENT LOCATION VIEWS $%%





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M2
FUEL PUMP
X6120X638X679


318isY6120
EVAPORATIVE
EMISSION VALVE

B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
X770