horn BMW 318is 1998 E36 Electrical Troubleshooting Manual




COMPONENT LOCATION CHART
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COMP.8500.0 7100.0LOCATION DESCRIPTION
K9 . . . . UNLOADER RELAY, TERMINAL 15 . . . . . . . behind LH footwell trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-3

K10 . .
ABS RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . .
19-1

K13 . . REAR DEFOGGER RELAY . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-1
K16 . . HAZARD FLASHER RELAY . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-2
K19 . . COMPRESSOR CONTROL RELAY . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-1
K21 . . NORMAL SPEED RELAY . . . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-3

K22 . .
HIGH SPEED RELAY . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . .
19-3

K46 . . HIGH BEAM LIGHT RELAY . . . . . . . . . . . . . . LH side of dash behind instrument cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-2
K46z DAY LIGHT RELAY MODULE . . . . . . . . . . . . . below LH side of dash
K47 . . FRONT FOG LIGHT RELAY . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-2
K48 . . LOW BEAM LIGHT RELAY . . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-2

K99 . .

REAR WINDOW BLOWER RELAY . . . . . . . .

behind glove box left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25-2


K108 . HORN RELAY (ALPINE) . . . . . . . . . . . . . . . . . behind glove box left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-2
K117 . . LUGGAGE COMPARTMENT LID RELAY . . behind glove box right
K125 . ABS PUMP MOTOR RELAY, TIMED . . . . . . . rear LH side of engine compartment in Power Distribution Box (318is) . . . . . . . . . . . 19-3

K128
SPATIAL SOUND RELAY . . . . . . . . . . . . . . . .
footwell, driver’s side behind trim panel



K450 PARK VENTILATION RELAY . . . . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-2
K6300 ENGINE CONTROL MODULE RELAY . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-3
K6301 CYL. 1–6 FUEL PUMP RELAY . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-3
K6301w FUEL PUMP RELAY . . . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment in Front Power Distribution Box . . . . . . . . . . . . 19-1

K6304

SECONDARY AIR PUMP RELAY . . . . . . . . .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . .

19-3


K6326 UNLOADER RELAY, TERMINAL 15 . . . . . . . rear RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39-1




COMPONENT LOCATION CHART
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COMP.8500.0 7100.0LOCATION DESCRIPTION
S2 . . . . IGNITION SWITCH . . . . . . . . . . . . . . . . . . . . . . RH side of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3

S3 . . . .
AUTOMATIC TRANSMISSION RANGE
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30-3



S4 . . . .
HORN SWITCH . . . . . . . . . . . . . . . . . . . . . . . . .
top of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24-2

S5 . . . .

WIPER/WASHER SWITCH . . . . . . . . . . . . . . .

LH side of dash RH side of steering column above




S6 . . . . ASC SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-2
S7 . . . . COMBINATION SWITCH . . . . . . . . . . . . . . . . . on steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3
S8 . . . . LIGHT SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-1

S10 . .
FOG LIGHT SWITCH . . . . . . . . . . . . . . . . . . . .
LH side of dash



S13 . . PASSENGER’S DOOR JAMB SWITCH . . . . in upper RH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-3
S14 . . DRIVER’S DOOR JAMB SWITCH . . . . . . . . . in upper LH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-3
S15 REAR RIGHT DOOR JAMB SWITCH . . . . . . in lower RH C–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-3
S16 LEFT REAR DOOR JAMB SWITCH . . . . . . . in lower LH C–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-3

S17 . .

MIRROR CONTROL SWITCH . . . . . . . . . . . .

in upper LH front door




S18 . . HAZARD SWITCH . . . . . . . . . . . . . . . . . . . . . . center console near gearshift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-3
S21w . ENGINE HOOD SWITCH . . . . . . . . . . . . . . . . front RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
S28 . . CRUISE CONTROL SWITCH . . . . . . . . . . . . . on steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3

S29 . .
BRAKE LIGHT SWITCH . . . . . . . . . . . . . . . . .
LH footwell on brake pedal support bracket behind LH footwell trim . . . . . . . . . . . . .
26-3

S30 . . BRAKE LIGHT SWITCH . . . . . . . . . . . . . . . . . LH footwell on brake pedal support bracket behind LH footwell trim . . . . . . . . . . . . . 26-2
S31 . . PARK BRAKE SWITCH . . . . . . . . . . . . . . . . . . center console on rear of park brake lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-2
S32 . . CLUTCH SWITCH . . . . . . . . . . . . . . . . . . . . . . LH footwell on clutch pedal support bracket behind LH footwell trim . . . . . . . . . . . . . 26-3
S36 . . TEMPERATURE SWITCH . . . . . . . . . . . . . . . . front RH side of engine compartment near RH headlight assembly . . . . . . . . . . . . . . 09-3




COMPONENT LOCATION VIEWS
ELECTRICAL CONTROL MODULE LOCATIONS
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A64
WIPER/WASHER
MODULE (LOW II)
X13252X13253X13254



A51
WIPER/WASHER
MODULE
X22
X10193
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)
K108
HORN RELAY
(ALPINE)
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)

A52
SLIP CONTROL
MODULE
(ABS/ASC)
N12w
ANTI–THEFT
CONTROL MODULE
(ALPINE)
X1170
X1171X13025


K10
ABS RELAY
K13
REAR DEFOGGER
RELAY
K19
COMPRESSOR
CONTROL RELAYK6301w
FUEL PUMP RELAY
K21
NORMAL SPEED
RELAY




COMPONENT LOCATION VIEWS $%%





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K2
HORN RELAY
K4
BLOWER RELAY
K16
HAZARD FLASHER
RELAYK47
FRONT FOG LIGHT
RELAY
K48
LOW BEAM LIGHT
RELAYK22
HIGH SPEED
RELAY
K125
ABS PUMP MOTOR
RELAY, TIMEDK6300
ENGINE CONTROL
MODULE RELAY
K6301
CYL. 1–6 FUEL
PUMP RELAY


K6304
SECONDARY AIR
PUMP RELAY







COMPONENT LOCATION VIEWS $%%





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C101
CONTACT RINGS2
IGNITION SWITCH



S7
COMBINATION
SWITCH
S28
CRUISE CONTROL
SWITCH G5
DRIVER’S AIR BAG
GAS GENERATOR
S4
HORN SWITCHX9997

X740
X741
X10218