AUX BMW Z3M ROADSTER 2001 E36 Electrical Troubleshooting Manual



COMPONENT LOCATION CHART











COMP.8500.0 7100.0LOCATION DESCRIPTION
G6430 . B+ JUMP START JUNCTION POINT . . . . . rear RH side of engine compartment

G6509 .
GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . .
front LH side of engine compartment



G7512 . B+ JUNCTION POINT . . . . . . . . . . . . . . . . . . below LH side of dash
H1w . . . ANTI–THEFT HORN (ALPINE) . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09-1
H2 . . . . LEFT HORN . . . . . . . . . . . . . . . . . . . . . . . . . . . under LH front bumper
H3 . . . . RIGHT HORN . . . . . . . . . . . . . . . . . . . . . . . . . RH front of wheel well . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2

H4 . . . .
RIGHT FRONT TURN LIGHT . . . . . . . . . . . .
front of vehicle



H7 . . . . LEFT FRONT TURN LIGHT . . . . . . . . . . . . . front of vehicle
H8 . . . . RIGHT FRONT AUXILIARY TURN LIGHT . front of vehicle
H9 . . . . LEFT FRONT AUXILIARY TURN LIGHT . . front of vehicle
H10 . . . CHIME MODULE . . . . . . . . . . . . . . . . . . . . . . below LH side of dash

H34 . . .

HIGH LEVEL STOP LIGHT . . . . . . . . . . . . . .

on lift gate (ROADSTER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25-2


H34 . . . HIGH LEVEL STOP LIGHT . . . . . . . . . . . . . . on lift gate (COUPE)
H45 . . . RIGHT REAR SPEAKER . . . . . . . . . . . . . . . . in roof panel
H46 . . . LEFT REAR SPEAKER . . . . . . . . . . . . . . . . . in roof panel

H50 . . .
RIGHT FRONT HIGH RANGE SPEAKER .
in upper RH front door



H51 . . . RIGHT FRONT LOW RANGE SPEAKER . in lower RH A–pillar
H52 . . . RIGHT REAR LOW RANGE SPEAKER . . . in rear speaker box
H53 . . . RIGHT REAR HIGH RANGE SPEAKER . . in roof panel
H54 . . . RIGHT FRONT MIDRANGE SPEAKER . . . in upper RH front door

H54z . .

REAR RIGHT MID–HIGH RANGE
SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . . .

in rear speaker box (ROADSTER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26-2



COMPONENT LOCATION CHART










COMP.8500.0 7100.0LOCATION DESCRIPTION
K22 . . . HIGH SPEED RELAY . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . 09-3

K25 . . .
RIGHT PARK LIGHT/LICENSE PLATE
LIGHT RELAY . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . .

01-3


K26 . . .
LEFT PARK LIGHT RELAY . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . .
01-3

K33a . .

AIR CONDITIONING RELAY, MOTRONIC .

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

09-3


K46 . . . HIGH BEAM LIGHT RELAY . . . . . . . . . . . . . footwell, driver’s side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-3
K47 . . . FRONT FOG LIGHT RELAY . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . 09-2
K48 . . . LOW BEAM LIGHT RELAY . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . 09-2



K70 . . .


CENTRAL LOCKING LUGGAGE
COMPARTMENT LID MOTOR RELAY
(ZV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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



01-3




K104 . .

AIR CONDITIONING RELAY/AUXILIARY
WATER PUMP . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . .


09-3



K910 . .

PASSENGER’S SEAT TILT ADJUST CUT–
OFF RELAY . . . . . . . . . . . . . . . . . . . . . . . . .
underside of RH front seat






K911 . . .

PASSENGER’S SEAT LENGTH ADJUST
CUT–OFF RELAY . . . . . . . . . . . . . . . . . . . .
underside of RH front seat






K920 . .

DRIVER’S SEAT TILT ADJUST CUT–OFF
RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
underside of LH front seat






K921 . .

DRIVER’S SEAT LENGTH ADJUST CUT–
OFF RELAY . . . . . . . . . . . . . . . . . . . . . . . . .
underside of LH front seat




K6300 . ENGINE CONTROL MODULE RELAY . . . . rear RH side of engine compartment in E–Box
K6301w FUEL PUMP RELAY . . . . . . . . . . . . . . . . . . . . below LH side of dash (Z3 VERSIONS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-3

K6301z
ELECTRIC FUEL PUMP RELAY, TIMED . .
under rear storage compartment (M VERSIONS)



K6304 . SECONDARY AIR PUMP RELAY . . . . . . . . rear RH side of engine compartment in E–Box



COMPONENT LOCATION CHART










COMP.8500.0 7100.0LOCATION DESCRIPTION
K6325 . REVERSING LIGHT RELAY . . . . . . . . . . . . . rear LH side of engine compartment

K6327 .
INJECTION VALVES RELAY . . . . . . . . . . . .
rear RH side of engine compartment in E–Box



K6394 . COMPRESSOR RELAY . . . . . . . . . . . . . . . . . TIRE INFLATION SYSTEM
K18363 CONVERTIBLE TOP RELAY I (CLOSE) . . . in LH side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08-3
K18364 CONVERTIBLE TOP RELAY II (OPEN) . . . in LH side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08-3
L1 . . . . . EWS TOROIDAL COIL . . . . . . . . . . . . . . . . . at ignition switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-3

M2 . . . .
FUEL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . .
in fuel tank



M3 . . . . WIPER MOTOR . . . . . . . . . . . . . . . . . . . . . . . rear of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-2
M4 . . . . WASHER PUMP . . . . . . . . . . . . . . . . . . . . . . . front RH side of engine compartment on washer fluid reservoir
M7 . . . . HEADLIGHT/FOG LIGHT WASHER PUMP front RH side of engine compartment on washer fluid reservoir
M9 . . . . AUXILIARY FAN MOTOR . . . . . . . . . . . . . . . behind front grille

M12 . . .

DRIVER’S DOOR LOCK MOTOR . . . . . . . .

driver’s door




M13 . . . PASSENGER’S DOOR LOCK MOTOR . . . passenger’s door
M16 . . . GAS FILLER LOCK MOTOR . . . . . . . . . . . . RH rear wheel well . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-1

M17 . . .
LUGGAGE COMPARTMENT LOCK
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
rear side of luggage compartment behind trim panel (ROADSTER)






M17 . . .

LUGGAGE COMPARTMENT LOCK
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
in lift gate (Z3 COUPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


24-2



M17 . . .

LUGGAGE COMPARTMENT LOCK
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
in lift gate (M COUPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


24-1

M21 . . . DRIVER’S WINDOW MOTOR . . . . . . . . . . . in driver’s door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-2
M23 . . . PASSENGER’S WINDOW MOTOR . . . . . . . in passenger’s door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-3

M24y . .

TILT SUNROOF MOTOR . . . . . . . . . . . . . . .

in roof panel



COMPONENT LOCATION CHART











COMP.8500.0 7100.0LOCATION DESCRIPTION
M30 . . . BLOWER MOTOR . . . . . . . . . . . . . . . . . . . . . rear of engine compartment

M37a . .
AUXILIARY WATER PUMP . . . . . . . . . . . . . .
rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31-3

M51 . . . DRIVER’S SEAT MOVEMENT MOTOR . . . under LH front seat
M52 . . . DRIVER’S SEAT HEIGHT MOTOR . . . . . . . under LH front seat
M59 . . . PASSENGER’S SEAT HEIGHT MOTOR . . under RH front seat

M60 . . .
PASSENGER’S SEAT MOVEMENT
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
under RH front seat




M101 . . CONVERTIBLE TOP MOTOR . . . . . . . . . . . in LH side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08-3

M111 . .
FRESH AIR RECIRCULATION MOTOR . . .
RH side of LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21-2

M118 . . PRECHARGE PUMP . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3
M119 . . LEAKAGE DIAGNOSIS PUMP . . . . . . . . . . . rear LH side of engine compartment
M805 . . ELECTRIC COMPRESSOR . . . . . . . . . . . . . TIRE INFLATION SYSTEM
M6506 . E–BOX FAN . . . . . . . . . . . . . . . . . . . . . . . . . . . in E–Box

M6510 .

STARTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

01-1


N5 . . . . ANALOG CLOCK . . . . . . . . . . . . . . . . . . . . . . center console
N8 . . . . ANTENNA AMPLIFIER AM/FM . . . . . . . . . . in LH side of luggage compartment behind trim panel (ROADSTER)
N8 . . . . ANTENNA AMPLIFIER AM/FM . . . . . . . . . . in roof panel (COUPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3

N9 . . . .
RADIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
center console





N12w . .

ANTI–THEFT CONTROL MODULE
(ALPINE) . . . . . . . . . . . . . . . . . . . . . . . . . . .
behind glove box



N17 . . .

CRASH CONTROL MODULE . . . . . . . . . . . .

footwell, driver’s side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

00-3


N22 . . . CD CHANGER . . . . . . . . . . . . . . . . . . . . . . . . . in RH side of luggage compartment



COMPONENT LOCATION CHART










COMP.8500.0 7100.0LOCATION DESCRIPTION
N44 . . . SUBWOOFER AMPLIFIER MODULE . . . . . in LH forward side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

P90 . . .
FRONT POWER DISTRIBUTION BOX . . .
rear LH side of engine compartment



P97 . . . AUXILIARY FUSE BOX . . . . . . . . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-3
P98 . . . FUSE HOLDER IN E–BOX . . . . . . . . . . . . . . rear RH side of engine compartment in E–Box
P99 . . . FUSE HOLDER . . . . . . . . . . . . . . . . . . . . . . . . in RH side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-1
P900 . . AUXILIARY FUSE BOX . . . . . . . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

R10 . . .
PEDAL POSITION SENSOR . . . . . . . . . . . .
behind gas pedal



R11 . . . . BLOWER RESISTORS . . . . . . . . . . . . . . . . . rear of engine compartment behind firewall
R33 . . . STEERING ANGLE SENSOR . . . . . . . . . . . on steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3
R6252 . THROTTLE POSITION SENSOR . . . . . . . . LH side of engine compartment
R8554 . RESISTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . on cylinder head

S2 . . . . .

IGNITION SWITCH . . . . . . . . . . . . . . . . . . . . .

LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27-3


S4 . . . . . HORN SWITCH . . . . . . . . . . . . . . . . . . . . . . . . on steering wheel
S5 . . . . . WIPER/WASHER SWITCH . . . . . . . . . . . . . . LH side of dash RH side of steering column above
S6 . . . . . ASC SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . center console

S6y . . . .
DSC SWITCH . . . . . . . . . . . . . . . . . . . . . . . . .
center console



S7 . . . . . COMBINATION SWITCH . . . . . . . . . . . . . . . . LH side of dash LH side of steering column above
S8 . . . . . LIGHT SWITCH . . . . . . . . . . . . . . . . . . . . . . . . LH side of dash
S10 . . . FOG LIGHT SWITCH . . . . . . . . . . . . . . . . . . . LH side of dash
S13 . . . PASSENGER’S DOOR JAMB SWITCH . . . RH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-1

S14 . . .

DRIVER’S DOOR JAMB SWITCH . . . . . . . .

LH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10-1


S17 . . . MIRROR CONTROL SWITCH . . . . . . . . . . . in upper LH front door



COMPONENT LOCATION CHART










COMP.8500.0 7100.0LOCATION DESCRIPTION
X380 . . (1 PIN, NATURAL) . . . . . . . . . . . . . . . . . . . . . HARD TOP CONNECTOR 1

X383 . .
(2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . .
on differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
08-1

X389 . . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . LEFT FRONT AUXILIARY TURN LIGHT
X390 . . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . RIGHT FRONT AUXILIARY TURN LIGHT
X400 . . (8 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-4
X413 . . (3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . HIGH LEVEL STOP LIGHT (ROADSTER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-2 00-4
X413 . .
(3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . .
HIGH LEVEL STOP LIGHT (COUPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


00-4
X423 . . (1 PIN, –––) . . . . . . . . . . . . . . . . . . . . . . . . . . . below center console on rear of park brake lever
X424 . . (1 PIN, –––) . . . . . . . . . . . . . . . . . . . . . . . . . . . in LH side of luggage compartment behind trim panel (ROADSTER)
X424 . . (1 PIN, –––) . . . . . . . . . . . . . . . . . . . . . . . . . . . in roof panel (COUPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3
X492 . . GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . front LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05-1

X494 . .

GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

below center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

03-1


X503 . . (12 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-3 06-2
X504 . . (4 PINS, NATURAL) . . . . . . . . . . . . . . . . . . . . LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-3 02-4
X509 . . (9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . 03-1
X510 . .
(9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . .


03-1
X514 . . (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1 06-1
X516 . . (5 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-3
X521 . . (4 PINS, BLUE) . . . . . . . . . . . . . . . . . . . . . . . . center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 06-1
X522 . . (3 PINS, NATURAL) . . . . . . . . . . . . . . . . . . . . RH side of LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 03-6
X531 . .

(1 PIN, NATURAL) . . . . . . . . . . . . . . . . . . . . .

center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22-3


X532 . . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-3

A35y
BOARD COMPUTER
(BC – LOW)
X10010
GROUND


7100.0 COMPONENT LOCATION VIEWS












X13004
GROUNDS220
AIR CONDITIONING/
RECIRCULATING
SWITCH ASSEMBLY
K46
HIGH BEAM LIGHT
RELAY

X10245X18349
K6301w
FUEL PUMP RELAY
N17
CRASH CONTROL
MODULEX322X1588


P97
AUXILIARY FUSE
BOX



B18
BRAKE FLUID
LEVEL SWITCH
COMPONENT LOCATION VIEWS











K2
HORN RELAYX111
X372
H1w
ANTI–THEFT HORN
(ALPINE)
K4
BLOWER RELAY
K16
HAZARD FLASHER
RELAYK47
FRONT FOG LIGHT
RELAY
K48
LOW BEAM LIGHT
RELAYK9
UNLOADER RELAY,
TERMINAL 15
K19
COMPRESSOR
CONTROL RELAY
K21
NORMAL SPEED
RELAYK22
HIGH SPEED
RELAY


K33a
AIR CONDITIONING
RELAY, MOTRONIC
K104
AIR CONDITIONING
RELAY/AUXILIARY
WATER PUMP




P900
AUXILIARY FUSE
BOX
COMPONENT LOCATION VIEWS












A52
SLIP CONTROL
MODULE
(ABS/ASC)
A65
DYNAMIC STABIL-
ITY CONTROL UNIT
(DSC)
D100
DATA LINK
CONNECTORB76
PRESSURE
SENSOR
M118
PRECHARGE PUMP


X1170X1746X1656X1747X1748
Y16z
PRESSURE TRANS-
MITTER





X122X19562
COMPONENT LOCATION VIEWS










A6000
ENGINE CONTROL
MODULE (DME)
X6001
X6002X6003X6004X6005
H67
DWA SIREN

M37a
AUXILIARY WATER
PUMP