BMW 318ti 1998 E36 Electrical Troubleshooting Manual
Page 11 of 281
!
CIRCUIT BREAKERVARIABLE RESISTANCE
SENSOR VARIABLE
CONTACT IS MOVED BY
AN EXTERNAL FORCE
VARIABLE RESISTOR
RESISTANCE IS
CHANGED BY
TEMPERATURE OR
PRESSURE
DIODE CURRENT
CAN FLOW ONLY IN
DIRECTION OF
ARROW
ZENER DIODE TO
REGULATE VOLTAGE
LIGHT EMITTING
DIODE PERMANENT MAGNET
MOTOR ONE SPEED
PERMANENT MAGNET
MOTOR TWO SPEEDS
SOLENOID
SOLENOID CONTROLLED
VALVE OR CLUTCH
SOLENOIDTRANSISTORIZED
SWITCH HEATING ELEMENT
OXYGEN SENSORCONTROL/POWER
ELECTRONICS
RADIO LOUDSPEAKER OR
HORN
LIGHT BATTERY
FUSIBLE LINK
FUSE DETAILS
INDUCTIVE
SENSOR
KNOCK SENSOR
31
VEHICLE SPEED
SENSOR
THERMO SWITCH
HALL EFFECT
SENSOR
ANTENNA
0140.0 SYMBOLS
Page 12 of 281
!
A WAVY LINE
MEANS WIRE IS
CONTINUED
ENTIRE COMPONENT
SHOWN
COMPONENT WITH
SCREW TERMINALS
CONNECTOR
ATTACHED TO
COMPONENT
PART OF COMPONENT
SHOWN
.75 BR.5 BR
X270
4
.5 BR
.5 BR
3
.5 BR.5 BR
X270
4
.5 BR
.75 GN/WS CONNECTOR
ATTACHED TO
COMPONENT LEAD
(PIGTAIL)
COMPONENT CASE
ATTACHED
DIRECTLY TO
METAL PART OF
CAR (GROUNDED)
WIRE ATTACHED
TO METAL PART
OF CAR
(GROUNDED)
GROUND NUMBERED
FOR REFERENCE ON
COMPONENT LOCATION
CHART
WIRE SIZE IN MM
SQUARED
BL BLUEWIRE COLOR
BR BROWN
GE YELLOW
GN GREEN
GR GRAY
OR ORANGE
RS PINK
RT RED
SW BLACK
VI VIOLET
WS WHITE
ONE POLE, TWO
POSITION SWITCH
SWITCHES THAT
MOVE TOGETHER
DASHED LINE
SHOWS A
MECHANICAL CON-
NECTION
BETWEEN
SWITCHES
TR TRANSPARENT
CONNECTOR REFERENCE
NUMBER FOR COMPONENT
LOCATION CHART
TWO CONNECTIONS
(PINS) IN THE SAME
CONNECTOR
DASHED LINE INDICATES
TERMINALS OF THE
SAME CONNECTOR
12
X165
1212
SYMBOLS
WIRE INSULATION
IS ONE COLOR
PIN NUMBER
WIRE INSULATION
IS ONE COLOR
WITH ANOTHER
COLOR STRIPE
(GREEN WITH
WHITE)
Page 13 of 281
!
4 RT
15
4 GN13
.5 GN/WS5
2.5 SW/GE 2.5 VI42
DETAILS ABOUT
COMPONENT OR
OPERATION
”R” IS ENERGIZED IN
ACCY, RUN, OR START 76 82 X33CONTACT RELAYRELAY WITH
RESISTOR
ACROSS WINDINGTERMINAL NUMBER THREE POLE,
FOUR POSITION
SWITCHCOMPONENT NUMBER
S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
TERMINAL NUMBER DESCRIPTION
50 VOLTAGE: IGNITION
SWITCH IN START
VOLTAGE: SUPPLIED
AT ALL TIMES
VOLTAGE: IGNITION
SWITCH IN RUN OR
START 30
15
15I
50 R30
INDICATES THAT FUSE
9 IS SUPPLIED WITH
POWER AT ALL TIMES
CONTACT RELAY WITH
TWO OUTPUTSCHANGEOVER
RELAY WITH TWO
OUTPUTS
TERMINAL NUMBER DESCRIPTION
30 RELAY INPUT
RELAY OUTPUT
(WINDING)
RELAY INPUT
(WINDING)
RELAY OUTPUT
(ENERGIZED)
RELAY OUTPUT
(AT REST) 85
86
87
87a
30 86
87 87 8530 86
87 85 87a
TERMINAL NUMBER DESCRIPTION
VOLTAGE: IGNITION
SWITCH IN RUN
VOLTAGE: IGNITION
SWITCH IN ACCESSORY,
RUN OR START 15I
R
GROUND 31
POWER STATUS DESCRIPTION
VOLTAGE: SUPPLIED
AT ALL TIMES
VOLTAGE: IGNITION
SWITCH IN RUN OR
START
VOLTAGE: IGNITION
SWITCH IN ACCESSORY,
RUN OR START
30 86
87 8530
86
87 85NAME OF COMPONENT
F915A
2
10
32
10
32
10
3
SYMBOLS
Page 14 of 281
SYMBOLS
!
1.5 BR DATA LINK
0670.5 .5 WS/GE
0670.0-030670.0-02
1.5 BRN9
RADIO
THE COMPLETE WIRE
PROGRESSION AND
FURTHER CIRCUITS
CONNECTED TO
GROUND X497 ARE
SHOWN IN CELL
”0670.4 GROUND
DISTRIBUTION” AT
GROUND X497
THE COMPLETE WIRE
PROGRESSION AND
FURTHER CIRCUITS
CONNECTED TO FUSE
18 ARE SHOWN IN CELL
”0670.3 FUSE DETAILS”
AT FUSE 18
CURRENT PATH IS
CONTINUED AS
LABELED P90
FRONT POWER
DISTRIBUTION BOX F18
15A
GROUND
DISTRIBUTION
0670.4
N1
ANTI–THEFT
CONTROL MODULE
(DWA) FUSE DETAILS
0670.3A1
GENERAL MODULE
X252
17X332
2
CIRCUIT REFERENCE–A
WIRE WHICH CONNECTS
TO ANOTHER CIRCUIT
A2
INSTRUMENT
CLUSTER
X16
11RXD
ARROW SHOWS
DIRECTION OF
CURRENT FLOW
AND IS REPEATED
WHERE CURRENT
PATH CONTINUES
X497
X1812615
X491
Page 15 of 281
BLOCK DIAGRAM
!
SYMBOLS
A1
GENERAL MODULE
228 17 118 9
C
6160.0 6160.0C
M17
LUGGAGE COMPARTMENT
LOCK MOTOR
23 20M12
DRIVER’S DOOR
LOCK MOTOR
N17
CRASH CONTROL
MODULE
N1
ANTI–THEFT
CONTROL MODULE
(DWA) 5126.0 5126.0
6575.1
A
54
S5
WIPER/WASHER
SWITCH 6160.0 6160.0 6160.0
M3
WIPER MOTOR
1C
S14
DRIVER’S DOOR
JAMB SWITCHS15
REAR RIGHT DOOR
JAMB SWITCH
S16
LEFT REAR DOOR
JAMB SWITCH S13
PASSENGER’S
DOOR JAMB
SWITCH 15
3
2A
P91
REAR POWER
DISTRIBUTION BOX
6
PIN AND
CONNECTOR NUM-
BERS ONLY ON
THE CONTROL
MODULE
DASHED LINE INDICATES
THAT FURTHER CIRCUITS
ARE IN THE PATH
BETWEEN COMPONENT
AND CONTROL MODULE
EXAMPLE: CONNECTORS
C PIN 17 AND C PIN 11 GO
TO M17, CONNECTORS A
PIN 23 AND A PIN 20 GO
TO M12
A
THIS CELL CONTAINS A
DETAILED INFORMATION OF
THE PATH BETWEEN COM-
PONENT AND CONTROL
MODULE
B
AD
COMPONENTS
WITHOUT PIN OR
CONNECTOR NUM-
BERS
EXAMPLE:
CONNECTOR C PIN 1
GOES TO S13,
CONNECTOR B PIN 15
GOES TO S14
DESCRIPTION OF THE
CONTROL MODULE
CONNECTORSX253
X255X332
X254BCD
=
=
=
=
F317.5A6100.0-03COMPONENT IS
SHOWN IN CELL
ON PAGE AS
LABELED
Page 16 of 281
11 12 13456 78 9
38
37
35
34
33
32
31 42
41
40
39 43 44
FRONT POWER DISTRIBUTION BOX
0670.0 POWER DISTRIBUTION CHART
!
K2
HORN RELAYK47
FRONT FOG LIGHT
RELAYK48
LOW BEAM LIGHT
RELAYK16
HAZARD FLASHER
RELAYK4
BLOWER RELAY
K13
REAR DEFOGGER
RELAYK125
ABS PUMP MOTOR
RELAY, TIMEDK22
HIGH SPEED
RELAYK19
COMPRESSOR
CONTROL RELAYK21
NORMAL SPEED
RELAY K6301w
FUEL PUMP RELAY K6300
ENGINE CONTROL
MODULE RELAY
X56X44X45X64X58
X292X11393
X53X51X52
X6304X6301X630046
45
3612 3 10
14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
FUSES FUSES
X0
K6304
SECONDARY AIR
PUMP RELAY
Page 17 of 281
POWER DISTRIBUTION CHART
RELAY PANEL UNDER LH SIDE OF DASHBOARD
!
N17
CRASH CONTROL
MODULEK46
HIGH BEAM LIGHT
RELAY X65X10262
K45
FOLDING
SUNROOF
COMFORT RELAYX1814
X1588
F48
Page 18 of 281
SPLICE PANEL UNDER LH SIDE OF DASHBOARD
POWER DISTRIBUTION CHART
!
K127y
READING LIGHTS
RELAYX18997
F47
X10250
K9
UNLOADER RELAY,
TERMINAL 15X63
Page 19 of 281
5133.0ZKE POWER WINDOWS (FH)
5203.0
5410.4HEATED SEATS
ELECTRIC FOLDING SUNROOF
6100.0
6133.0
6160.1CENTRAL BODY ELECTRONICS (ZKE IV)
HORN
WIPER/WASHER MODULE (WWM)
5126.0ZKE CENTRAL LOCKING (ZV)
6135.0DRIVE–AWAY PROTECTION (EWS II)
6169.0WINDSHIELD WASHER JET HEATERS
5410.1POWER TILT/SLIDE SUNROOF (SHD)
0670.1 FUSE CHART
FUSES 1 TO 29
!
FUSE NUMBER
12345 10 206 7 8 9 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 27 28 29
1230.0
2460.2
3234.0
3450.1
5116.0
30A 5A 30A 15A 30A 30A 5A 30A 7.5A 7.5A 5A 15A 5A 5A 5A 10A 5A 7.5A
20A 15A 30A 5A 5A
CHARGING SYSTEM
ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
POWER MIRRORS SLIP CONTROL (ABS/ASC)
30A 15A 10A
SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG) 1210.20ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)
1240.0START
3450.0SLIP CONTROL (ABS)
5200.0POWER SEATS
6211.0INSTRUMENT CLUSTER
Page 20 of 281
5A 5A
FUSE CHART
FUSES 1 TO 29
!
FUSE NUMBER
12345 10 206 7 8 9 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 27 28 29
30A 5A 30A 15A 30A 30A 5A 30A 7.5A 7.5A 5A 15A 5A 5A 5A 10A 7.5A20A 15A 30A 5A30A 15A 10A
6314.0PARK/TAIL/UNDERHOOD LIGHTS
6350.0CRASH CONTROL MODULE 6325.0
6330.3
6332.0BRAKE LIGHTS
INTERIOR LIGHTS
INTERIOR ACCESSORIES 6322.0BACK UP LIGHTS
6320.0LICENSE PLATE/LUGGAGE COMPARTMENT LIGHTS
6410.7
6450.6
6510.0
6510.1INTEGRATED HEATING– AND CLIMATE CONTROL HEATING CONTROL (HS)
RADIO/CD PLAYER (PROVISIONS)
RADIO/HIFI
6561.0CELLULAR TELEPHONE (PROVISIONS)
6571.0CRUISE CONTROL (TEMPOMAT)
6300.0
6312.0
6313.0
LIGHT SWITCH DETAILS
HEADLIGHTS/FOG LIGHTS
TURN/HAZARD LIGHTS
6575.2ANTI–THEFT SYSTEM (ALPINE)
6424.0REAR WINDOW DEFOGGER
6213.0CLOCK
6581.3BOARD COMPUTER (BC – LOW)