56 A 01090232-1 / 96-04-23

TROUBLE-SHOOTING

MAGNETI MARELLI G5 & G6 INTERFACE SIGNAL LOCATIONS

Interface – Signal Locations

Note: Connector viewed from below

1. Control signal to ignition coil, cylinder 1 & 42. Control signal to idle speed correction valve3. Engine speed signal to revolution counter4. Diagnosis5. Control signal to main relay6. Control signal to AC relay7. Power to throttle potentiometer8. Not connected9. Power to manifold air pressure sensor (MAP)

10. Not connected11. Ground to sensor12. Ground to sensor13. Ground14. Signal from crankshaft sensor15. Status signal from automatic gear box16. Ground17. Ground18. Control signal to injection valve(s)19. Control signal to ignition coil, cylinder 2 & 320. Control signal to tank ventilation21. Control signal to fuel pump relay22. Control signal to engine control lamp23. Not connected24. Signal from coolant temperature sensor25. Signal from throttle potentiometer26. Signal from air temperature sensor27. Signal from manifold air pressure sensor (MAP)28. Diagnosis29. Constant power from battery30. Signal from lambda sensor31. Ground to crankshaft sensor32. Air conditioner (only certain models)33. Air conditioner (only certain models)34. Not connected35. Power from main relay

System Magneti Marelli G5 Wiring harness

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

57A 01090232-1 / 96-04-23

TROUBLE-SHOOTING

MAGNETI MARELLI G5 & G6

WIRING DIAGRAM

MAGNETI MARELLI G5

Wiring Diagram G5

This wiring diagram is an example. Check in the relevant workshopmanual for the diagram of the car model you are working with.26

12

27

9

28

16

33

17

29

30

32

13

18

20

2

19

1

21

22

+

4

3

15

6

31

14

7

25

11

24

+ 35

5

Control unit G5Air temperature sensor

MAP-sensor

Coolant temp. sensor

Throttle potentiometer

Crankschaft sensor

Air conditioner

Automatic gear box

Revolution counter

Diagnostic link

Lambda sensor

Lambda sensor preheating

Battery

Ignition switch

Main relay

Engine

control

lamp

Pump relay

Ignition coil

Fuel pump

Injection valve

Idle speed

correction valve

Tank ventilation

58 A 01090232-1 / 96-04-23

TROUBLE-SHOOTING

MAGNETI MARELLI G5 & G6 INTERFACE SIGNAL LOCATIONS

Interface – Signal Locations

System Magneti Marelli G6

1. Ignition pulse to ignition coil, cylinder 1 & 42. Control signal to idle speed correction valve3. Control signal to idle speed correction valve4. Diagnosis5. Signal from crankshaft sensor6. Engine speed signal to revolution counter7. Control signal to engine control lamp8. Not connected9. Air conditioner (only certain models)

10. Signal from manifold air pressure sensor (MAP)11. Signal from throttle potentiometer12. Status signal from automatic gear box.13. Ground14. Signal from air temperature sensor15. Power to manifold air pressure sensor (MAP)16. Ground17. Ground18. Control signal to injection valve19. Ignition pulse to ignition coil, cylinder 2 & 320. Control signal to idle speed correction valve21. Control signal to idle speed correction valve22. Control signal to tank ventilation23. Not connected24. Ground to crankshaft sensor25. Control signal to fuel pump relay26. Control signal to air conditioner27. Power for air conditioner28. Diagnosis29. Constant power from battery30. Signal from lambda sensor31. Ground to sensors32. Not connected33. Power to throttle potentiometer34. Signal from coolant temperature sensor35. Power from main relay

Note: Connector viewed from below

Wiring harness

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

59A 01090232-1 / 96-04-23

TROUBLE-SHOOTING

MAGNETI MARELLI G5 & G6

14

31

10

15

28

16

9

17

29

30

27

13

18

22

19

1

25

7

+

4

6

12

26

24

5

33

11

34

+ 35

3

2

20

21

WIRING DIAGRAM

MAGNETI MARELLI G6

Wiring Diagram G6

This wiring diagram is an example. Check in the relevant workshopmanual for the diagram of the car model you are working with.

MAP-sensor

Air temperature sensorControl unit G6

Coolant temp. sensor

Throttle potentiometer

Crankshaft sensor

Air conditioner

Automatic gear box

Revolution counter

Diagnostic link

Lambda sensor

Lambda sensor preheating

Battery

Ignition switch

Main relay

Engine lamp

Pump relay

Ignition coil

Fuel pump

Injection valve

Idle speed

correction

valve

Tank ventilation