ENGINE PERFORMANCE – BMW M3 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.2L

3.2L, Engine Performance Wiring Diagram (1 of 3) for BMW M3 2003

List of elements for 3.2L, Engine Performance Wiring Diagram (1 of 3) for BMW M3 2003:

• (left rear of engine compt) x6454
• (top left side of engine) electric throttle actuator
• Air inj vlv
• Camshaft position sensor 1 (inlet) (on front of engine)
• Camshaft position sensor 2 (outlet) (right front of engine)
• Camshft 1 sig
• Camshft 2 sig
• Characteristic map cooling thermostat (on cylinder head)
• Charging system
• Close sig
• Cool temp
• Cool temp sig
• Crankshaft position sensor (left side of engine)
• Crnkshft sig
• Cyl 1
• Cyl 2
• Cyl 3
• Cyl 4
• Cyl 5
• Cyl 6
• Digital motor electronics (dme) control unit (left rear of engine compt)
• E-box (left rear of engine compt)
• Engine coolant temperature sensor (rear of engine)
• Evap valve
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel inj relay
• Fuel injection valves
• Fuel injectors relay
• Fuse f30 7.5a
• Fuse f5 30a
• Fuse holder (glove box)
• Gen
• Ground
• Hot at all times
• Hot film mass air flow sensor (left side of engine compt)
• Hot in run or start
• Iat sig
• Icis valve
• Knock sensor (rear of engine)
• Knock sens
• Maf sens
• Map cool
• Nca
• Oil level
• Oil level sensor (under oil pan)
• Oil press
• Oil pressure switch
• Oil temp
• Oil temperature sensor (front of engine, under intake)
• Open sig
• Red
• Return
• Throttle act
• Tp sig
• Vanos inlet
• Vanos outlet
• X10016
• X60001
• X60003
• X6454 (left rear of engine compt)
• X8680

3.2L, Engine Performance Wiring Diagram (2 of 3) for BMW M3 2003

List of elements for 3.2L, Engine Performance Wiring Diagram (2 of 3) for BMW M3 2003:

• (behind right rear seat) x494
• (if equipped) clutch switch
• B+ potential distributor
• Brakelight switch (on bracket, above brake pedal)
• Can h
• Can l
• Digital motor electronics (dme) control unit (left rear of engine compt)
• Dme relay
• E-box (left rear of engine compt)
• Evaporative emission valve (on left front of engine)
• Exterior lights system
• Fuel pump (in fuel tank)
• Fuel pump relay
• Fuse f1 30a
• Fuse f2 30a
• Fuse f3 20a
• Fuse f4 30a
• Fuse f54 15a
• Fuse f9 5a
• Fuse holder (glove box)
• Hot at all times
• Hot in accy, run, or start
• Idle speed control valve (left side of engine)
• Individual control intake system valve (left side of engine compartment)
• Nca
• O2s frt 1
• O2s frt 1 htr
• O2s frt 1 sig
• O2s frt 2
• O2s frt 2 htr
• O2s frt 2 sig
• O2s rear 1
• O2s rear 1 htr
• O2s rear 2
• O2s rear 2 htr
• 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)
• Transmission control module (left rear of engine compt)
• Vanos inlet valve (left side of engine, under intake)
• Vanos outlet valve (right front of engine)
• X10015
• X10016
• X217 (under left side of dash)
• X60002
• X64101
• X64102
• X8680

3.2L, Engine Performance Wiring Diagram (3 of 3) for BMW M3 2003

List of elements for 3.2L, Engine Performance Wiring Diagram (3 of 3) for BMW M3 2003:

• (behind accel pedal) pedal position sensor
• (left rear of engine compt)
• (right rear wheelhouse) fuel tank leakage diagnostic module
• 2nd air mass
• 2ndry air mass
• A/c relay
• Abs system
• Air conditioning relay
• Air pump relay
• Anti-theft system
• Brake sig
• Can h
• Can l
• Clutch sig
• Computer data lines system
• Cool out temp
• Coolant outlet temperature sensor
• Cooling fans system
• Cruise control
• Digital motor electronics (dme) control unit (left rear of engine compt)
• Drv awy prot
• E-box (left rear of engine compt)
• E-box fan
• Exh flap
• Exhaust flap valve (left rear of luggage compt)
• Fan
• Fuel pump rly
• Fuse f29 5a
• Fuse holder (glove box)
• Fuse f36 50a
• 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)
• Obd socket (left footwell)
• Ped pos 1 sig
• Ped pos 2 sig
• Red
• Return
• Rpm sig
• Rr speed sig
• Secondary air hot-film air mass meter
• Secondary air injection pump
• Secondary air pump relay
• Str whl ctrls
• Tank leakage
• Terminal 15
• Txd diag sig
• X10016
• X14250 (right front of engine compt)
• X19527
• X60004
• X60005
• X6454
• X6456 (right side of engine)