heating BMW Z3M COUPE 1999 E36 Electrical Troubleshooting Manual
Page 2 of 357
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
0670.0 POWER 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
5126.0 ZKE 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
6350.0 CRASH CONTROL MODULE 6424.0 REAR WINDOW DEFOGGER
6450.6
INTEGRATED HEATING– AND
CLIMATE CONTROL
6510.1 RADIO/HIFI
6561.0
CELLULAR TELEPHONE
(PROVISIONS)
6571.0 CRUISE 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
Page 6 of 357
INDEX
HEADLIGHT WASHER (SRA) 6167.1-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEADLIGHT, LEFT, E7 6312.0-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEADLIGHT, RIGHT, E8 6312.0-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEADLIGHT/FOG LIGHT WASHER PUMP, M7 6160.1-00. . . . . . . . . . . . . .
HEADLIGHT/FOG LIGHT WASHER PUMP, M7 6167.1-00. . . . . . . . . . . . . .
HEADLIGHTS/FOG LIGHTS 6312.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEAT/A/C CONTROL PANEL ILLUMINATION, E105 6300.0-02. . . . . . . . .
HEAT/A/C CONTROL PANEL ILLUMINATION, E105 6300.0-03. . . . . . . . .
HEAT/A/C CONTROL PANEL ILLUMINATION, E106 6300.0-02. . . . . . . . .
HEAT/A/C CONTROL PANEL ILLUMINATION, E106 6300.0-03. . . . . . . . .
HEATED SEATS 5203.0-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HIFI AMPLIFIER, A18 6510.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HIGH BEAM LIGHT RELAY, K46 6312.0-01. . . . . . . . . . . . . . . . . . . . . . . . . . .
HIGH BEAM LIGHT, LEFT, E11 6312.0-01. . . . . . . . . . . . . . . . . . . . . . . . . . . .
HIGH LEVEL STOP LIGHT, H34 6325.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HIGH RANGE SPEAKER, LEFT FRONT, H59 6510.1-02. . . . . . . . . . . . . . .
HIGH RANGE SPEAKER, LEFT FRONT, H59 6510.1-03. . . . . . . . . . . . . . .
HIGH RANGE SPEAKER, LEFT REAR, H56 6510.1-03. . . . . . . . . . . . . . . .
HIGH RANGE SPEAKER, RIGHT FRONT, H50 6510.1-01. . . . . . . . . . . . . .
HIGH RANGE SPEAKER, RIGHT REAR, H53 6510.1-03. . . . . . . . . . . . . . .
HIGH SPEED RELAY, K22 6450.6-03. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HIGH SPEED RELAY, K22 6450.6-07. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HORN 6133.0-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HORN RELAY, K2 6133.0-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HORN SWITCH, S4 6133.0-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HORN, LEFT, H2 6133.0-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOT FILM AIR MASS METER, B6207 1210.17-05. . . . . . . . . . . . . . . . . . . . .
HOT FILM AIR MASS METER, B6207 1210.25-05. . . . . . . . . . . . . . . . . . . . .
IDLE SPEED CONTROL VALVE, Y6130 1210.17-01. . . . . . . . . . . . . . . . . . .
IDLE SPEED CONTROL VALVE, Y6130 1210.25-03. . . . . . . . . . . . . . . . . . . IGNITION COIL, CYL. 1, T6151 1210.17-03. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 1, T6151 1210.25-01. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 2, T6152 1210.17-03. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 2, T6152 1210.25-01. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 3, T6153 1210.17-03. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 3, T6153 1210.25-01. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 4, T6154 1210.17-03. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 4, T6154 1210.25-01. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 5, T6155 1210.17-03. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 5, T6155 1210.25-01. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 6, T6156 1210.17-03. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION COIL, CYL. 6, T6156 1210.25-01. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION SWITCH, S2 0670.2-04. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION SWITCH, S2 0670.2-08. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INDEX 0100.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTRUMENT CLUSTER 6211.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTRUMENT CLUSTER, A2w 6211.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTAKE AIR TEMPERATURE SENSOR, B6205 1210.17-02. . . . . . . . . . . . .
INTAKE AIR TEMPERATURE SENSOR, B6205 1210.25-07. . . . . . . . . . . . .
INTEGRATED HEATING– AND CLIMATE CONTROL 6450.6. . . . . . . . . . . .
INTERIOR ACCESSORIES 6332.0-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTERIOR LIGHT SWITCH, S408 6330.3-00. . . . . . . . . . . . . . . . . . . . . . . . . .
INTERIOR LIGHT, FRONT LEFT, E800 6330.3-00. . . . . . . . . . . . . . . . . . . . .
INTERIOR LIGHTS 6330.3-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTERMEDIATE PRESSURE SWITCH, B9 6450.6-03. . . . . . . . . . . . . . . . . .
INTERMEDIATE PRESSURE SWITCH, B9 6450.6-07. . . . . . . . . . . . . . . . . .
INTRODUCTION 0110.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JET HEATER THERMOSWITCH, S198 6169.0-00. . . . . . . . . . . . . . . . . . . . .
KICK–DOWN SWITCH, S8507 2460.2-02. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
KNOCK SENSOR, B6240 1210.17-06. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page 13 of 357
CIRCUIT BREAKERVARIABLE RESISTANCE
SENSOR VARIABLE
CONTACT IS MOVED BY
AN EXTERNAL FORCE
VARIABLE RESISTOR RE-
SISTANCE IS CHANGED
BY TEMPERATURE OR
PRESSURE
DIODE CURRENT
CAN FLOW ONLY IN
DIRECTION OF AR-
ROW
ZENER DIODE TO
REGULATE VOLTAGE
LIGHT EMITTING
DIODE PERMANENT MAGNET
MOTOR ONE SPEED
PERMANENT MAGNET
MOTOR TWO SPEEDS
SOLENOID
SOLENOID CON-
TROLLED 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 22 of 357
*15A
10A
6312.0
FUSE CHART
FUSES 1 TO 29
FUSE NUMBER
6313.0
6314.0
6320.0
6322.0TURN/HAZARD LIGHTS
BACK UP LIGHTS LICENSE PLATE/LUGGAGE COMPARTMENT LIGHTS PARK/TAIL/UNDERHOOD LIGHTS
6332.0INTERIOR ACCESSORIES
6424.0REAR WINDOW DEFOGGER
6450.6
6561.0
6571.0
6575.2CRUISE CONTROL (TEMPOMAT) INTEGRATED HEATING– AND CLIMATE CONTROL
CELLULAR TELEPHONE (PROVISIONS)
ANTI–THEFT SYSTEM (ALPINE) 6350.0CRASH CONTROL MODULE 6330.3INTERIOR LIGHTS 6325.0BRAKE LIGHTS HEADLIGHTS/FOG LIGHTS
6581.3BOARD COMPUTER (BC – LOW) 6510.1RADIO/HIFI
6300.0LIGHT SWITCH DETAILS
6169.0WINDSHIELD WASHER JET HEATERS
6211.0INSTRUMENT CLUSTER
6213.3DIGITAL CLOCK12345 10 206 7 8 9 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 27 28 29
30A 30A 15A 30A 20A 5A 30A 7.5A 5A 15A 5A 5A 5A 10A 5A 7.5A20A 15A 30A 5A 5A7.5A 30A 10A 10A30A M VERSIONS *
7.5A*5A
Page 24 of 357
FUSE CHART
FUSES 30 TO 205
FUSE NUMBER
6313.0
6314.0
6320.0
6322.0TURN/HAZARD LIGHTS
BACK UP LIGHTS LICENSE PLATE/LUGGAGE COMPARTMENT LIGHTS PARK/TAIL/UNDERHOOD LIGHTS
6332.0INTERIOR ACCESSORIES
6424.0REAR WINDOW DEFOGGER
6450.6
6561.0
6571.0
6575.2CRUISE CONTROL (TEMPOMAT) INTEGRATED HEATING– AND CLIMATE CONTROL
CELLULAR TELEPHONE (PROVISIONS)
ANTI–THEFT SYSTEM (ALPINE) 6350.0CRASH CONTROL MODULE 6330.3INTERIOR LIGHTS 6325.0BRAKE LIGHTS 6312.0HEADLIGHTS/FOG LIGHTS
6581.3BOARD COMPUTER (BC – LOW) 6510.1RADIO/HIFI
6300.0LIGHT SWITCH DETAILS
6169.0WINDSHIELD WASHER JET HEATERS
6211.0INSTRUMENT CLUSTER
6213.3DIGITAL CLOCK
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
50A
30A
20A
30A
30A
Page 87 of 357
Pin Assignments
E = Input, A = Output, M = Ground
X6000
Pin Type Description/Function Connection
1
ACyl. 2 ignition coil controlCyl. 2 ignition coil
2ACyl. 4 ignition coil controlCyl. 4 ignition coil
3ACyl. 6 ignition coil controlCyl. 6 ignition coil
4MGroundGround point
5ACyl. 2 fuel injection valve controlCyl. 2 fuel injection valve
6ACyl. 1 fuel injection valve controlCyl. 1 fuel injection valve
7MGroundHot wire air mass meter
8EHot wire air mass meterHot wire air mass meter
9ETI-measurement signal (fuel consumption)Not used
10EEngine coolant temperatureEngine coolant temperature sensor
11EFuel tank pressureFuel tank pressure sensor
12EThrottle position signalThrottle position sensor
13Not used
14EIntake air temperatureIntake air temperature sensor
15ESpeed signal right rearABS/ASC control module
16EActivate A/CPressure switch
17Not used
18EDrive away protection signal (code)Electronic immobilizer control module
(EWS III)
19EA/C-ON-signalAir conditioning operating unit
20A“Check engine” indicator controlInstrument cluster
21ACamshaft controlVariable camshaft control valve
22ACyl. 3 fuel injection valve controlCyl. 3 fuel injection valve
23ACyl. 6 fuel injection valve controlCyl. 6 fuel injection valve
24ACyl. 4 fuel injection valve controlCyl. 4 fuel injection valve
25MOxygen sensor heating groundOxygen sensor I (in front of catalytic
converter)
26EBattery voltageB+ jump start junction point
27AActivate valveIdle speed control valve
28MGroundGround point
29ACyl. 1 ignition coil controlCyl. 1 ignition coil
Page 88 of 357
Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
30
ACyl. 3 ignition coil controlCyl. 3 ignition coil
31ACyl. 5 ignition coil controlCyl. 5 ignition coil
32MGroundGround point
33ACyl. 5 fuel injection valve controlCyl. 5 fuel injection valve
34MGroundGround point
35AActivate relaySecondary air pump relay
36ACrankshaft RPM speed signal TDInstrument cluster
37Not used
38MGroundShield knock sensor
39MGroundTemperature sensors
40MGroundCrankshaft position/RPM sensor
Fuel tank pressure sensor
41MGroundShield camshaft position sensor
42MGroundThrottle position sensor
43MGroundCamshaft position sensor
44AVoltage supplyThrottle position sensor
Fuel tank pressure sensor
45AThrottle position signalABS/ASC control module
46ETI-measurement signal (fuel consumption)Instrument cluster
47Not used
48AVoltage supplyCrankshaft position/RPM sensor
(Early Production)
49ETerminal 15Ignition switch
50ARunning lossesSolenoid valve
51AActivate valveCharcoal filter shut off valve
52Not used
53AActivate valveIdle speed control valve
54EBattery voltage, terminal 87Engine control module relay
55MOxygen sensor heating groundOxygen sensor II (in front of catalytic
converter)
56MGroundGround point
57ECyl. 1-3 knock sensorKnock sensor
58ECyl. 1-3 knock sensorKnock sensor
Page 89 of 357
Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
59
ECyl. 4-6 knock sensorKnock sensor
60EProgramming voltageData link connector
61MOxygen sensor heating groundOxygen sensor II (behind catalytic
converter)
62EActivate valveSecondary air pump value
63ECyl. 4-6 knock sensorKnock sensor
64ECamshaft positionCamshaft position sensor
65ECamshaft positionCamshaft position sensor
66Not used
67MOxygen sensor signal groundOxygen sensor I (in front of catalytic
converter)
68EActivate valveEvaporative emission valve
69EActivate relayFuel pump relay
70MOxygen sensor signal groundOxygen sensor II (in front of catalytic
converter)
71MOxygen sensor signal groundOxygen sensor I (behind catalytic
converter)
72MOxygen sensor signal groundOxygen sensor II (behind catalytic
converter)
73EActivate relayEngine control module relay
74AActivate A/C compressorCompressor control relay
75ESensor signalOxygen sensor I (in front of catalytic
converter)
76ESensor signalOxygen sensor II (in front of catalytic
converter)
77ESensor signalOxygen sensor I (behind catalytic
converter)
78ESensor signalOxygen sensor II (behind catalytic
converter)
79MOxygen sensor heating groundOxygen sensor I (behind catalytic
converter)
80AASC signal ZASlip control module ABS/ASC
81AASC signal ZWVSlip control module ABS/ASC
82AASC signal MSRSlip control module ABS/ASC
83ESensor signalCrankshaft position/RPM sensor
Page 102 of 357
Pin Assignments
E = Input, A = Output, M = GroundA = X60001
9 Pins, black
B = X6000224 Pins, black
C = X6000352 Pins, black
D = X6000440 Pins, black
E = X600059 Pins, black
X60001
Pin Type Signal Description/Function Connection
1
A15Activate relayUnloader relay terminal 15
2Not used
3Not used
4M31EGroundGround point
5M31LGroundGround point
6M31LGroundGround point
7E30Voltage supplyB+ junction point E-box
8EU_HR<2Voltage supplyFuse holder in E-box
9EU_HR<2Voltage supplyFuse holder in E-box
X60002
Pin Type Signal Description/Function Connection
1
MT_LHV1Oxygen sensor heating groundOxygen sensor 1 (in front of
catalytic converter)
2Not used
3E/AD_CAN-LCAN bus lowTransmission control module (EGS)
4E/AD_CAN-HCAN bus highTransmission control module (EGS)
5Not used
6E/AD_TXD2DiagnosisTransmission control module (EGS)
7MT_LHH1Oxygen sensor heating groundOxygen sensor 1 (behind catalytic
converter)
8Not used
Page 103 of 357
Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
9
Not used
10Not used
11Not used
12AS_KKUActivate valveSolenoid valve (Running Losses)
13MT_LHV2Oxygen sensor heating groundOxygen sensor 2 (in front of
catalytic converter)
14EA_LSV1Sensor signalOxygen sensor 1 (in front of
catalytic converter)
15EA_LSV2Sensor signalOxygen sensor 2 (in front of
catalytic converter)
16EA_LSH1Sensor signalOxygen sensor 1 (behind catalytic
converter)
17Not used
18EA_LSH2Sensor signalOxygen sensor 2 (behind catalytic
converter)
19MT_LHH2Oxygen sensor heating groundOxygen sensor 2 (behind catalytic
converter)
20MM_LSV1Signal groundOxygen sensor 1 (in front of
catalytic converter)
21MM_LSV2Signal groundOxygen sensor 2 (in front of
catalytic converter)
22MM_LSH1Signal groundOxygen sensor 1 (behind catalytic
converter)
23AS_HRActivate relayEngine control module relay
24MM_LSH2Signal groundOxygen sensor 2 (behind catalytic
converter)
X60003
Pin Type Signal Description/Function Connection
1
EA_HFMSignal air mass meterHot film air mass meter
2EP_NWGA1Signal camshaft positionCamshaft position sensor 2 (outlet)
3Not used
4AU_DKFW1Voltage supplyThrottle position sensor 1