ENGINE PERFORMANCE – BMW Z3 2002 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.5L

2.5L, Engine Performance Wiring Diagram (1 of 3) for BMW Z3 2002

List of elements for 2.5L, Engine Performance Wiring Diagram (1 of 3) for BMW Z3 2002:

• (late prod)
• (partial)
• (right rear side of engine compt)
• (under rear storage compt) x13032
• 8-11
• Activate relay
• Activate valve
• Air mass met
• B+ junction point e-box (in front power distribution box)
• Camshaft position sensor 1 (inlet) (on front of engine)
• Camshaft position sensor 2 (outlet) (right front of engine)
• Camshft sig
• Can bus (+)
• Can bus (-)
• Characteristic map cooling thermostat (on front of cylinder head)
• Crankshaft position/ rpm sensor (left rear side of engine compartment)
• Crnkshft sig
• Cyl 1-3
• Cyl 1-3 ks
• Cyl 4-6
• Cyl 4-6 ks
• Double knock sensor (left rear side of engine)
• E-box
• Engine control module (dme) (right rear side of engine compt)
• Engine control module relay
• Engine coolant temperature sensor (on left rear of eng compt)
• Front power distribution box (left rear corner of eng compt)
• Fuel pump (in fuel tank)
• Fuel pump relay
• Fuse f18 15a
• Fuse f201 30a
• Fuse f202 30a
• Fuse f203 20a
• Fuse f204 30a
• Ground
• Hot at all times
• Hot film air mass meter (on left side of eng compt, on air intake tube)
• Intake air temperature sensor (on top center of eng, on intake manifold)
• Nca
• O2s htd sig
• O2s htg sig
• Oil temperature sensor (right side of oil filter)
• Red
• Sensor sig
• Sig ground
• Temp sig
• Tp sig
• Transmission control module (egs) (right rear side of engine compt, in e-box)
• Txd2
• X10016
• X60001
• X60002
• X60003
• X64101
• X64102
• X6454 (right rear of engine compt)
• X8680

2.5L, Engine Performance Wiring Diagram (2 of 3) for BMW Z3 2002

List of elements for 2.5L, Engine Performance Wiring Diagram (2 of 3) for BMW Z3 2002:

• Brakelight switch (on bracket, above brake pedal)
• Cyl 1
• Cyl 2
• Cyl 3
• Cyl 4
• Cyl 5
• Cyl 6
• E-box (right rear side of eng compt)
• Evaporative emission valve (on left front of engine)
• Exterior lights system
• Front power distribution box (left rear corner of eng compt)
• Fuel injection valves
• Fuse f13 5a
• Fuse f205 30a
• Fuse f46 15a
• Hot at all times
• Hot in accy, run, or start
• Hot in run or start
• Idle speed control valve (left side of engine)
• Individual control intake system valve (left side of engine compartment)
• Injection valves relay
• Nca
• Oxygen sensor 1 (behind catalytic converter)
• Oxygen sensor 1 (in front of catalytic converter)
• Oxygen sensor 2 (behind catalytic converter)
• Oxygen sensor 2 (in front of catalytic converter)
• Red
• Secondary air pump valve (left rear of engine)
• Variable camshaft control valve 1 (inlet) (top front of engine)
• Variable camshaft control valve 2 (outlet) (front of cylinder head)
• X10016
• X10018
• X6454 (right rear of engine compt)
• X8680

2.5L, Engine Performance Wiring Diagram (3 of 3) for BMW Z3 2002

List of elements for 2.5L, Engine Performance Wiring Diagram (3 of 3) for BMW Z3 2002:

• (behind accelerator pedal) pedal position sensor
• (on lower left rear side of eng compt) heated leakage diagnosis pump
• (partial)
• (pins 1-2 not used) activate relay
• (pins 11, 15, & 16 not used)
• 18-19
• 38-40
• 4-6
• Abs system
• Activate motor
• Activate relay
• Activate valve
• Air conditioning relay
• Air pump (right rear side of eng compt)
• Anti-theft system
• B+ junction point e-box (in front power distribution box)
• Brake sig
• Can bus (+)
• Can bus (-)
• Close sig
• Clutch sig
• Clutch switch
• Computer data lines system
• Cooling sig
• Crse cntrl sig
• Cruise control system
• Data link connector (dlc) (left rear side of eng compt)
• Drv awy prot
• E-box (right rear side of eng compt)
• Electric throttle actuator (top left side of engine)
• Engine control module (dme) (right rear side of engine compt)
• Front power distribution box (left rear corner of eng compt)
• Fuse f107 50a
• Fuse f26 10a
• Ground
• Hot at all times
• Hot in run or start
• Ign coil 1 sig
• Ign coil 2 sig
• Ign coil 3 sig
• Ign coil 4 sig
• Ign coil 5 sig
• Ign coil 6 sig
• Ignition coils (top right side of engine)
• Nca
• Ohm
• Open sig
• Ped pos 1 sig
• Red
• Resistor
• Rpm sig
• Rr speed sig
• Secondary air pump relay
• Signal oil lvl
• Terminal 15
• Txd diag sig
• X10017
• X1982
• X60003
• X60004
• X60005
• X6002
• X6454 (right rear of engine compt)
• X6455 (right rear of engine compt)
• X6456 (right side of engine)

3.0L

3.0L, Engine Performance Wiring Diagram (1 of 3) for BMW Z3 2002

List of elements for 3.0L, Engine Performance Wiring Diagram (1 of 3) for BMW Z3 2002:

• (late prod)
• (partial)
• (right rear side of engine compt)
• (under rear storage compt) x13032
• 8-11
• Activate relay
• Activate valve
• Air mass met
• B+ junction point e-box (in front power distribution box)
• Camshaft position sensor 1 (inlet) (on front of engine)
• Camshaft position sensor 2 (outlet) (right front of engine)
• Camshft sig
• Can bus (+)
• Can bus (-)
• Characteristic map cooling thermostat (on front of cylinder head)
• Crankshaft position/ rpm sensor (left rear side of engine compartment)
• Crnkshft sig
• Cyl 1-3
• Cyl 1-3 ks
• Cyl 4-6
• Cyl 4-6 ks
• Double knock sensor (left rear side of engine)
• E-box
• Engine control module (dme) (right rear side of engine compt)
• Engine control module relay
• Engine coolant temperature sensor (on left rear of eng compt)
• Front power distribution box (left rear corner of eng compt)
• Fuel pump (in fuel tank)
• Fuel pump relay
• Fuse f18 15a
• Fuse f201 30a
• Fuse f202 30a
• Fuse f203 20a
• Fuse f204 30a
• Ground
• Hot at all times
• Hot film air mass meter (on left side of eng compt, on air intake tube)
• Intake air temperature sensor (on top center of eng, on intake manifold)
• Nca
• O2s htd sig
• O2s htg sig
• Oil temperature sensor (right side of oil filter)
• Red
• Sensor sig
• Sig ground
• Temp sig
• Tp sig
• Transmission control module (egs) (right rear side of engine compt, in e-box)
• Txd2
• X10016
• X60001
• X60002
• X60003
• X64101
• X64102
• X6454 (right rear of engine compt)
• X8680

3.0L, Engine Performance Wiring Diagram (2 of 3) for BMW Z3 2002

List of elements for 3.0L, Engine Performance Wiring Diagram (2 of 3) for BMW Z3 2002:

• Brakelight switch (on bracket, above brake pedal)
• Cyl 1
• Cyl 2
• Cyl 3
• Cyl 4
• Cyl 5
• Cyl 6
• E-box (right rear side of eng compt)
• Evaporative emission valve (on left front of engine)
• Exterior lights system
• Front power distribution box (left rear corner of eng compt)
• Fuel injection valves
• Fuse f13 5a
• Fuse f205 30a
• Fuse f46 15a
• Hot at all times
• Hot in accy, run, or start
• Hot in run or start
• Idle speed control valve (left side of engine)
• Individual control intake system valve (left side of engine compartment)
• Injection valves relay
• Nca
• Oxygen sensor 1 (behind catalytic converter)
• Oxygen sensor 1 (in front of catalytic converter)
• Oxygen sensor 2 (behind catalytic converter)
• Oxygen sensor 2 (in front of catalytic converter)
• Red
• Secondary air pump valve (left rear of engine)
• Variable camshaft control valve 1 (inlet) (top front of engine)
• Variable camshaft control valve 2 (outlet) (front of cylinder head)
• X10016
• X10018
• X6454 (right rear of engine compt)
• X8680

3.0L, Engine Performance Wiring Diagram (3 of 3) for BMW Z3 2002

List of elements for 3.0L, Engine Performance Wiring Diagram (3 of 3) for BMW Z3 2002:

• (behind accelerator pedal) pedal position sensor
• (on lower left rear side of eng compt) heated leakage diagnosis pump
• (partial)
• (pins 1-2 not used) activate relay
• (pins 11, 15, & 16 not used)
• 18-19
• 38-40
• 4-6
• Abs system
• Activate motor
• Activate relay
• Activate valve
• Air conditioning relay
• Air pump (right rear side of eng compt)
• Anti-theft system
• B+ junction point e-box (in front power distribution box)
• Brake sig
• Can bus (+)
• Can bus (-)
• Close sig
• Clutch sig
• Clutch switch
• Computer data lines system
• Cooling sig
• Crse cntrl sig
• Cruise control system
• Data link connector (dlc) (left rear side of eng compt)
• Drv awy prot
• E-box (right rear side of eng compt)
• Electric throttle actuator (top left side of engine)
• Engine control module (dme) (right rear side of engine compt)
• Front power distribution box (left rear corner of eng compt)
• Fuse f107 50a
• Fuse f26 10a
• Ground
• Hot at all times
• Hot in run or start
• Ign coil 1 sig
• Ign coil 2 sig
• Ign coil 3 sig
• Ign coil 4 sig
• Ign coil 5 sig
• Ign coil 6 sig
• Ignition coils (top right side of engine)
• Nca
• Ohm
• Open sig
• Ped pos 1 sig
• Red
• Resistor
• Rpm sig
• Rr speed sig
• Secondary air pump relay
• Signal oil lvl
• Terminal 15
• Txd diag sig
• X10017
• X1982
• X60003
• X60004
• X60005
• X6002
• X6454 (right rear of engine compt)
• X6455 (right rear of engine compt)
• X6456 (right side of engine)

3.3L

3.3L, Engine Performance Wiring Diagram (1 of 4) for BMW Z3 2002

List of elements for 3.3L, Engine Performance Wiring Diagram (1 of 4) for BMW Z3 2002:

• (below rear of center console) timed electric fuel pump relay
• (partial)
• 11-12
• 15-16
• 2-4
• 21-22
• 27-28
• 8-9
• Activate relay
• Activate valve
• Air mass met
• B+ junction point e-box (right rear of engine x64102 compt)
• Camshft sig
• Charge sig
• Charging system
• Clutch ped sig
• Clutch switch
• Crnkshft sig
• Cyl 1-2 ks
• Cyl 3-4 ks
• Cyl 5-6 ks
• Cylinders 1-2 knock sensor (top left side of engine)
• Cylinders 3-4 knock sensor (top left side of engine)
• Cylinders 5-6 knock sensor (top left side of engine)
• E-box
• E-box (right rear of engine compt)
• E-box fan sig
• Engine control module (dme) (right rear side of engine compt)
• Engine control module relay
• Front power distribution box (left rear of engine compt)
• Fuel injection valves
• Fuse f18 15a
• Fuse f205 30a
• Ground
• Hot at all times
• Iat sig
• Injection valves relay
• Nca
• O2s htg gnd
• Oil press sig
• Oil pressure switch (lower left front of engine)
• Red
• Sensor sig
• Teach-in proc
• Temp sig
• Tp sig
• X10016
• X60001
• X60002
• X60003
• X64101
• X6454 (right rear of engine compt)
• X8680

3.3L, Engine Performance Wiring Diagram (2 of 4) for BMW Z3 2002

List of elements for 3.3L, Engine Performance Wiring Diagram (2 of 4) for BMW Z3 2002:

• (behind catalytic converter) oxygen sensor 1
• (behind catalytic converter) oxygen sensor 2
• (in e-box) e-box fan
• (in front of catalytic converter) oxygen sensor 1
• (in front of catalytic converter) oxygen sensor 2
• (right side of engine compt) exhaust temperature sensor
• B+ junction point (under left side of dash)
• Camshaft position sensor 1 (inlet) (on front of engine)
• Camshaft position sensor 2 (outlet) (top rear of engine)
• Crankshaft position/rpm sensor (top rear of eng compt)
• E-box (right rear of engine compt)
• Electric throttle motor (on throttle body)
• Engine coolant temperature sensor (on front of engine)
• Fuel pump (in fuel tank)
• Fuse f107 50a
• Fuse f201 30a
• Fuse f202 30a
• Fuse f203 20a
• Fuse f204 30a
• Hot at all times
• Hot film air mass meter (on left side of engine compt, on air intake tube)
• Nca
• Red
• Throttle position sensor (left side of engine compt)
• Tire pressure warning system pushbutton (left side of dash)
• X13032 (under rear storage compt)
• X18170 (below center console)
• X1982
• X5392
• X5393
• X8680

3.3L, Engine Performance Wiring Diagram (3 of 4) for BMW Z3 2002

List of elements for 3.3L, Engine Performance Wiring Diagram (3 of 4) for BMW Z3 2002:

• (on bracket, above brake pedal) brakelight switch
• Air pump (right rear side of engine compt)
• Charge ind
• Charging system
• E-box (right rear of engine compt)
• Front power distribution box (left rear of engine compt)
• Fuse f13 5a
• Fuse f16 5a
• Fuse f27 5a
• Fuse f46 15a
• Heated leakage diagnosis pump (on lower left rear side of engine)
• High speed relay (in power distribution box)
• Hot in accy, run, or start
• Hot in run or start
• Instrument cluster
• Oil level ind
• Oil press ind
• Red
• Secondary air pump relay
• Tire press ind
• Variable camshaft control valves (front of engine)
• X10016
• X10017
• X10018
• X16
• X17
• X18170 (below center console)
• X271
• X6454 (right rear of engine compt)
• X861 (right front of engine compt)

3.3L, Engine Performance Wiring Diagram (4 of 4) for BMW Z3 2002

List of elements for 3.3L, Engine Performance Wiring Diagram (4 of 4) for BMW Z3 2002:

• (front of engine) idle speed control valve
• (left rear of engine) evaporative emission valve
• (left rear side of engine compt) data link connector (dlc)
• (left rear side of engine compt) sucking jet pump solenoid valve
• (left side of engine compt) thermal oil level switch
• (partial)
• (right rear of engine compt) x6454
• 38-40
• 48-49
• A/c system
• Abs system
• Activate heat
• Activate motor
• Activate relay
• Activate valve
• Anti-theft system
• Aux fan sig
• Brake sig
• Can bus (+)
• Can bus (-)
• Charge ind
• Close sig
• Computer data lines system
• Cruise control system
• Cruise sig
• Drv awy prot
• Engine control module (dme) (right rear side of engine compt)
• Exterior lights system
• Front power distribution box (left rear of engine compt)
• Fuse f15 5a
• Fuse f26 10a
• Generator
• Ground
• Hot in run
• Hot in run or start
• Ign coil 1 sig
• Ign coil 2 sig
• Ign coil 3 sig
• Ign coil 4 sig
• Ign coil 5 sig
• Ign coil 6 sig
• Ignition coils (top right side of engine)
• Leak diag
• Nca
• Oil level sig
• Oil press sig
• Oil sig
• Open sig
• Ped pos 1 sig
• Ped pos 2 sig
• Pedal position sensor (behind accelerator pedal)
• Reverse sig
• Rpm sig
• Rr speed sig
• Signal test
• Start sig
• Suppression capacitor
• Terminal 15
• Tire press ind
• Txd diag sig
• X10016
• X10017
• X60003
• X60004
• X60005
• X6002
• X6454 (right rear of engine compt)
• X6456 (right side of engine)