Evaporative Emission System

Wiring Diagram, Part 1

Components
22a Main fuse board, dashboard; on the short side of the dashboard by the driver's door
102 Relay, fuel pump; in dashboard relay box
229 Main relay, engine management system; in dashboard relay box
271 Heater element, oxygen sensor; integrated in oxygen sensor
323 Motor, fuel pump; in fuel tank underneath rear seat
501 Main fuse board, Maxi-fuses; beside battery
589 Engine control module, Trionic OBDII; in passenger compartment under side trim below A-pillar on right-hand side
592Fa Heated oxygen sensor 1, OBDII; before catalytic converter
592Ra Heated oxygen sensor 2, OBDII; after catalytic converter

4-pin connectors
H4-7 On fuel pump
H4-18 Brown connector under rear seat by fuel tank

33-pin connectors
H33-1 Grey connector on console below left-hand A-pillar
H33-4 Black connector on bulkhead behind glove box

Crimp connections
J36 In branching towards control module
J60 In branching towards DICE
J76 About 200 mm from branching grounding
point G33 towards DICE
J114 About 80 mm from branching grounding
(3D/5D) point G3 towards passenger compartment
J114 About 50 mm from right-hand rear light
(CONV) branching towards compartment

Grounding points
G3 In luggage compartment; on floor under
left-hand rear light cluster
G7P Grounding point (Power); on side of intake manifold to cylinder 4





Wiring Diagram, Part 2

Components
22a Main fuse board, dashboard; on the short side of the dashboard by the driver's door
29 Brake light switch; on pedal assembly
156 A/C compressor relay; on engine bay relay board
179a Solenoid valve, charge air; to the right of the radiator
202 Engine coolant temperature sensor, engine management system; on intake manifold flange between cylinders 3 and 4
203 Throttle position sensor; on throttle body
321 EVAP canister purge valve; on right-hand side of engine bay
342a Main fuse box, engine bay; on left-hand side below windscreen
345 Crankshaft position sensor; under exhaust manifold
407 intake air temperature sensor; on intake manifold
431 Manifold absolute pressure sensor; on stay between spring legs' upper attachment points
444 Test connector for PC diagnostics (for production only); in engine bay
460 Vacuum pump relay; on engine bay relay board
508 Cruise control module; on right-hand side of engine bay under windscreen
547 ABS control module; integrated in brake module behind battery
585 EVAP pressure sensor; on top of fuel tank
589 Engine control module, Trionic OBDII; in passenger compartment under side trim below A-pillar on right-hand side

4-pin connectors
H4-16 At cruise control
H4-19 Black connector underneath rear seat at fuel tank

33-pin connectors
H33-2 Black connector on console below left-hand A-pillar
H33-3 Blue connector on console below left-hand A-pillar
H33-4 Black connector on bulkhead behind glove box
H33-5 Grey connector on bulkhead behind glove box
H33-6 Brown connector on console below left-hand A-pillar

Crimp connections
J31 About 45 mm from rear edge of connector to control module
J37 About 50 mm from control module branching towards control module
J63 About 200 mm from MIU branching towards SID
J75 About 370 mm from rear edge of connector towards DICE

Crimp connections
JH4 In DICE branching

Grounding points
G7S Grounding point (Signal); on side of intake manifold to cylinder 4





Wiring Diagram, Part 3

Components
22a Main fuse board, dashboard; on the short side of the dashboard by the driver's door
157 Spark plug; on engine
206a Injector, cyl. 1; on top of intake manifold
206b Injector, cyl. 2; on top of intake manifold
206c Injector, cyl. 3; on top of intake manifold
206d Injector, cyl. 4; on top of intake manifold
272 Idle air control valve; beside throttle housing (right-hand side)
346 Ignition discharge module; on valve cover
502 TCM control module; in passenger compartment on right-hand side of bulkhead
540b Main instrument unit; on dashboard in front of driver
588 EVAP shut-off valve; in right-hand rear wheel housing
589 Trionic OBDIII control module; in compartment on right-hand side underneath side trim below A-pillar

2-pin connectors
H2-43 At EVAP canister

4-pin connectors
H4-16 At cruise control

10-pin connectors
H10-19 On console below left-hand A-pillar

33-pin connectors
H33-4 Black connector on bulkhead behind glove box
H33-5 Grey connector on bulkhead behind glove box

Crimp connections
J33 About 240 mm from rubber grommet in bulkhead towards connector H33-4
J34 About 160 mm from rubber grommet in bulkhead on engine bay side
J50 About 270 mm from branching grounding point G34 towards SID
J70 About 140 mm from connector H33-4

Grounding points
G7P Grounding point (Power); on side of intake manifold to cylinder 4
G34P On control module console (Power); in passenger compartment below right-hand A-pillar