1999 BMW Z3M COUPE engine

BMW NA
ELECTRICAL TROUBLESHOOTING
MANUAL
SERIES 3 – E36/7 (Z3 Roadster, Z3 Coupe,
M Roadster, and M Coupe)
SCHEMATICS MODEL YEAR 1999
0100.0 INDEX
0110.0 INTRODUCTION
0140.0 SYMBOLS
0670.0POWER DISTRIBUTION CHART 0670.1 FUSE CHART 0670.2 POWER DISTRIBUTION
0670.3 FUSE DETAILS
0670.4 GROUND DISTRIBUTION
0670.5 DATA LINK
1210.17 ENGINE CONTROL SYSTEM
MS41.1 (6–CYLINDER S52)

1210.25
ENGINE CONTROL SYSTEM
MS42.1 (6–CYLINDER M52)
1230.0 CHARGING SYSTEM
1240.0 START
1290.0 E–BOX FAN
2460.2 ELECTRONIC TRANSMISSION
CONTROL (EGS A4S 270R)

3234.0
SUPPLEMENTAL RESTRAINT
SYSTEM (AIR BAG)
3450.1 SLIP CONTROL (ABS/ASC)
3614.0 TIRE INFLATION SYSTEM
5116.0 POWER MIRRORS
5126.0ZKE CENTRAL LOCKING (ZV) 5133.0 ZKE POWER WINDOWS (FH) 5200.0 POWER SEATS 5203.0 HEATED SEATS
5410.5 POWER TILT SUNROOF


5430.2

ELECTRO–HYDRAULIC
CONVERTIBLE TOP
6100.0 CENTRAL BODY ELECTRONICS
(ZKE IV)
6133.0 HORN

6135.1

DRIVE–AWAY PROTECTION
(EWS III)
6160.1 WIPER/WASHER MODULE (WWM)
6167.1 HEADLIGHT WASHER (SRA)
6169.0 WINDSHIELD WASHER JET
HEATERS
6211.0 INSTRUMENT CLUSTER 6213.3 DIGITAL CLOCK 6300.0 LIGHT SWITCH DETAILS
6312.0 HEADLIGHTS/FOG LIGHTS
6313.0 TURN/HAZARD LIGHTS
6314.0 PARK/TAIL/UNDERHOOD LIGHTS
6320.0 LICENSE PLATE/LUGGAGE
COMPARTMENT LIGHTS
6322.0 BACK UP LIGHTS
6325.0 BRAKE LIGHTS
6330.3 INTERIOR LIGHTS
6332.0 INTERIOR ACCESSORIES
6350.0CRASH CONTROL MODULE 6424.0 REAR WINDOW DEFOGGER
6450.6
INTEGRATED HEATING– AND
CLIMATE CONTROL
6510.1 RADIO/HIFI


6561.0

CELLULAR TELEPHONE
(PROVISIONS)
6571.0CRUISE CONTROL (TEMPOMAT) 6575.2 ANTI–THEFT SYSTEM (ALPINE) 6581.3 BOARD COMPUTER (BC – LOW) 7000.0 COMPONENT LOCATION CHART
7100.0 COMPONENT LOCATION VIEWS
8000.0 SPLICE LOCATION VIEWS
8500.0 CONNECTOR VIEWS

INDEX











\b\b\b

E–BOX FAN 1290.0-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . .
E –BOX FAN, M6506 1290.0-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
ELECTRICAL COMPRESSOR, M805 3614.0-00 . . . . . . . . . . . . . . . . . . . . . . .
ELECTRO –HYDRAULIC CONVERTIBLE TOP 5430.2 . . . . . . . . . . . . . . . . . .
ELECTRONIC IMMOBILIZER CONTROL MODULE (EWS III), A837 6135.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . .
ELECTRONIC TRANSMISSION CONTROL (EGS A4S 310R) 2460.2 . . . .
ENGINE CONTROL MODULE (DME), A6000 1210.17 . . . . . . . . . . . . . . . . . .
ENGINE CONTROL MODULE (DME), A6000 1210.25 . . . . . . . . . . . . . . . . . .
ENGINE CONTROL MODULE RELAY, K6300 1210.17-00 . . . . . . . . . . . . . .
ENGINE CONTROL MODULE RELAY, K6300 1210.25-00 . . . . . . . . . . . . . .
ENGINE CONTROL RELAY (ABS/ASC), K94 3450.1-00 . . . . . . . . . . . . . . . .
ENGINE CONTROL SYSTEM MS41.1 (6 –CYLINDER M52) 1210.17 . . . . .
ENGINE CONTROL SYSTEM MS42.1 (6 –CYLINDER M52) 1210.25 . . . . .
ENGINE COOLANT TEMPERATURE SENSOR, B6232 1210.17-02 . . . . . .
ENGINE COOLANT TEMPERATURE SENSOR, B6232 6211.0-03 . . . . . . .
ENGINE COOLANT TEMPERATURE SENSOR, B6236 1210.17-02 . . . . . .
ENGINE COOLANT TEMPERATURE SENSOR, B6236 1210.25-07 . . . . . .
ENGINE HOOD SWITCH, S21w 6575.2-00 . . . . . . . . . . . . . . . . . . . . . . . . . . .
EVAPORATIVE EMISSION VALVE, Y6120 1210.17-05 . . . . . . . . . . . . . . . . .
EVAPORATIVE EMISSION VALVE, Y6120 1210.25-03 . . . . . . . . . . . . . . . . .
EVAPORATOR CONTROLLER, S221 6450.6-01 . . . . . . . . . . . . . . . . . . . . . .
EVAPORATOR CONTROLLER, S221 6450.6-05 . . . . . . . . . . . . . . . . . . . . . .
EVAPORATOR TEMPERATURE SENSOR, B14 6450.6-01 . . . . . . . . . . . . .
EVAPORATOR TEMPERATURE SENSOR, B14 6450.6-05 . . . . . . . . . . . . .
EWS TOROIDAL COIL, L1 6135.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FOG LIGHT RELAY, FRONT, K47 6312.0-00 . . . . . . . . . . . . . . . . . . . . . . . . . .
FOG LIGHT SWITCH, S10 6312.0-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FOG LIGHT, LEFT, E26 6312.0-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FOG LIGHT, RIGHT, E27 6312.0-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FRESH AIR RECIRCULATION MOTOR, M111 6450.6-01
. . . . . . . . . . . . . . .
FRESH AIR RECIRCULATION MOTOR, M111 6450.6-05 . . . . . . . . . . . . . . .
FRONT POWER DISTRIBUTION BOX, FRONT, P90 0670.2 . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 1, Y6101 1210.17-01 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 1, Y6101 1210.25-02 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 2, Y6102 1210.17-01 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 2, Y6102 1210.25-02 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 3, Y6103 1210.17-01 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 3, Y6103 1210.25-02 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 4, Y6104 1210.17-01 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 4, Y6104 1210.25-02 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 5, Y6105 1210.17-01 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 5, Y6105 1210.25-02 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 6, Y6106 1210.17-01 . . . . . . . . . . . . . . . . . .
FUEL INJECTION VALVE, CYL. 6, Y6106 1210.25-02 . . . . . . . . . . . . . . . . . .
FUEL PUMP RELAY, K6301w 1210.17-04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP RELAY, K6301w 1210.25-06 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP, M2 1210.17-04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . .
FUEL PUMP, M2 1210.25-06 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . .
FUEL SENSOR, B6y 6211.0-02 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\

FUEL T ANK PRESSURE SENSOR, B65 1210.17-09
. . . . . . . . . . . . . . . . . . .
FUSE CHART 0670.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . .
FUSE DETAILS 0670.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . .
FUSE HOLDER IN E –BOX, P98 0670.2-01 . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUSE HOLDER, P99 0670.2-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\

GENERATOR, G6509 1230.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. .
GROUND DISTRIBUTION 0670.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HARD TOP CONNECTOR 1, E99 6424.0-01 . . . . . . . . . . . . . . . . . . . . . . . . . .
HAZARD FLASHER RELAY, K16 6313.0-00 . . . . . . . . . . . . . . . . . . . . . . . . . . .
HAZARD SWITCH, S18 6313.0-01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

K70
CENTRAL LOCKING
LUGGAGE
COMPARTMENT
LID MOTOR RELAY
(ZV)


K48
LOW BEAM LIGHT
RELAYX45
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
RELAYK16
HAZARD FLASHER
RELAYK4
BLOWER RELAY
K94
ENGINE CONTROL
RELAY (ABS/ASC)K95
VALVE RELAY
(ABS/ASC)K22
HIGH SPEED
RELAYK19
COMPRESSOR
CONTROL RELAYK21
NORMAL SPEED
RELAY X56X44X64X58
X63X18766X18767
X53X51X52
46
45
3612 3 10
14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
FUSES FUSES
X0
K9
UNLOADER RELAY,
TERMINAL 15X1376
M VERSIONS K33a
AIR CONDITIONING
RELAY, MOTRONICX50
** *
*
**
M COUPE
**



IN E–BOX
POWER DISTRIBUTION CHART











K6326
UNLOADER RELAY,
TERMINAL 15
K6300
ENGINE CONTROL
MODULE RELAY K6304
SECONDARY AIR PUMP
RELAYX6326
X6300X6304
M VERSIONS
K6300
ENGINE CONTROL
MODULE RELAYX6300K6326
UNLOADER RELAY,
TERMINAL 15X6326K6304
SECONDARY AIR
PUMP RELAYX6304
Z3 VERSIONS

*15A


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
1210.25
1290.0
2460.2
3234.0
30A 10A 30A 15A 30A 20A 5A 30A 7.5A 5A 15A 5A 5A 5A 10A 5A 7.5A20A15A 30A 5A 5A
ENGINE CONTROL SYSTEM MS42.1 (6–CYLINDER M52)
E–BOX FAN
SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG) ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
7.5A 30A 10A 10A30A
5116.0POWER MIRRORS
5133.0
5200.0ZKE POWER WINDOWS (FH)
POWER SEATS
5203.0
6133.0
6160.1HEATED SEATS
HORN
WIPER/WASHER MODULE (WWM) 5126.0ZKE CENTRAL LOCKING (ZV) 3450.1SLIP CONTROL (ABS/ASC) 1230.0CHARGING SYSTEM
6135.1DRIVE–AWAY PROTECTION (EWS III)

























1210.17ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER S52)









6100.0CENTRAL BODY ELECTRONICS (ZKE IV)



6167.1HEADLIGHT WASHER (SRA)

5430.2ELECTRO–HYDRAULIC CONVERTIBLE TOP


1240.0START

3614.0TIRE INFLATION SYSTEM
5410.5POWER TILT SUNROOF


M VERSIONS *
7.5A











*5A



FUSE CHART




FUSES 30 TO 205







FUSE NUMBER





39
7.5A 5A 30A 10A 15A 25A 30A 7.5A 30A 15A 15A 7.5A 15A30A 10A

40     
  38 37 36 35
5A 5A

40A

1210.25
1290.0
2460.2
3234.0ENGINE CONTROL SYSTEM MS42.1 (6–CYLINDER M52)
E–BOX FAN
SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG) ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
5116.0POWER MIRRORS
5133.0
5200.0ZKE POWER WINDOWS (FH)
POWER SEATS
5203.0
6133.0
6160.1HEATED SEATS
HORN
WIPER/WASHER MODULE (WWM) 5126.0ZKE CENTRAL LOCKING (ZV) 3450.1SLIP CONTROL (ABS/ASC) 1230.0CHARGING SYSTEM
6135.1DRIVE–AWAY PROTECTION (EWS III) 1210.17ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER S52)
6100.0CENTRAL BODY ELECTRONICS (ZKE IV)
6167.1HEADLIGHT WASHER (SRA) 5430.2ELECTRO–HYDRAULIC CONVERTIBLE TOP 1240.0START
3614.0TIRE INFLATION SYSTEM
5410.5POWER TILT SUNROOF
50A

30A


20A


30A


30A











POWER DISTRIBUTION



G7512
B+ JUNCTION
POINT
F10880A
X10422
6 RT
K6300
ENGINE CONTROL
MODULE RELAY
G6400
B+ JUNCTION
POINT E–BOX
1
X64192
4 RT
6 X6300
2
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
1 RT
26
X8500
2
X64101
A6000
ENGINE CONTROL
MODULE (DME)
1.5 RT
7
X60001
1
P98
FUSE HOLDER IN
E–BOX
2.5 RT
9
X8680
1
X64102
4 RT/WS5
2
X6300
87
30
4F202
30A
6F203
20A
4 RT/WS/GE4 RT/WS
8
1.5 RT/WSF204
30A
15 15 15
X868010
2.5 RTF205
30A 30
2
X6021
P90
FRONT POWER
DISTRIBUTION BOX
X100166F13
7.5A 15
5 X10016
Z3 VERSIONS
1.5 RT/WS
1.5 RT/WS
.75 RT/WS2.5 RT/WS
FUSE DETAILS
0670.3
X6961
1210.25 2460.2

X6821
POWER DISTRIBUTION
8













X0
G1
BATTERY0670.2-06
P90
FRONT POWER
DISTRIBUTION BOX
30B+ X6512
X6509M6510
STARTERG6509
GENERATOR
X2
16 RT
1240.0 1230.010 RT
25 RT
G6430
B+ JUMP START
JUNCTION POINT
X6433X6430
X6432X6431
2.5 RT
.5 RT F97
80A
2 X6304
K6304
SECONDARY AIR
PUMP RELAY
1210.17
6 RT
50 RT 6 RT6 RT
X6411
X6437
26 X6000A6000
ENGINE CONTROL
MODULE (DME)
1210.17
6 X6326K6326
UNLOADER RELAY,
TERMINAL 15
1210.17
6
K6300
ENGINE CONTROL
MODULE RELAY
1210.17
X6300
X6412
14
X6002D100
DATA LINK
CONNECTOR
X6415
4 RT
X6414
4 RT 4 RT 4 RT
10 RT
4 RT2.5 RT
2 X6300
1 RT/WSX6822
4 RT/WS
14 X20
.5 RT/WS
5 X10016
F135A
6 X10016.5 RT/WS/GE
FUSE DETAILS
0670.3
2.5 RT/WS
ENGINE CONTROL
SYSTEM MS41.1
(6–CYLINDER S52)
1210.17X6413
2.5 RT
P90
FRONT POWER
DISTRIBUTION BOX
M VERSIONS
86 30
87