Kawasaki Z400 - Service manual > DFI System

1. ECU
2. Battery
3. Vehicle-down Sensor
4. Intake Air Pressure Sensor
5. Idle Speed Control Valve Actuator
6. Throttle Sensor
7. Fuel Injectors
8. Intake Air Temperature Sensor
9. Fuel Pump
10.  Purge Valve (Equipped Models)
11. Air Switching Valve
12. Water Temperature Sensor
13. Gear Position Sensor
14. Oxygen Sensor
15. Crankshaft Sensor
16. Rear Wheel Rotation Sensor
17. ABS Hydraulic Unit (ABS Equipped Models)

DFI Components Naming

The terms used in the European regulation for DFI components are sometimes different from those used by Kawasaki. Use this table to cross reference terms which my appear in a generic scan tool when diagnosing the DFI system.

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DFI System Wiring Diagram

Part Names

1.  ECU
2. Kawasaki Diagnostic System Connector
3. Rear Wheel Rotation Sensor
4. Fuel Pump
5. Engine Ground
6. Battery
7. Main Fuse 30 A
8. Starter Relay
9. Frame Ground (4)
10. Frame Ground (2)
11. Frame Ground (1 )
12. Fuse Box (1)
13. Ignition Fuse 10 A .
14. Fan Fuse 15 A
15. ECU Fuse 15 A
16. Relay Box
17. Fuel Pump Relay
18. ECU Main Relay
19.  Radiator Fan Relay
20. Meter Unit
21. Yellow Engine Warning Indicator Light (LED)
22. Ignition Switch
23. Engine Stop Switch
24. Starter Button
25. Fan Motor
26. Stick Coils
27. Spark Plugs
28. Air Switching Valve
29. Fuel Injector #I
30. Fuel Injector #2
31. Idle Speed Control Valve Actuator
32. Throttle Sensor
33. Intake Air Pressure Sensor
34. Vehicle-down Sensor
35. Intake Air Temperature Sensor
36. Gear Position Sensor
37. Water Temperature Sensor
38. Oxygen Sensor
39. Crankshaft Sensor
40. Purge Valve (Equipped Models)

DFI System Wiring Diagram (ABS Equipped Models)

Part Names

ECU

1. Kawasaki Diagnostic System Connector
2. Rear Wheel Rotation Sensor
3. Fuel Pump
4. Engine Ground
5. Battery
6. Main Fuse 30 A
7. Starter Relay
8. Frame Ground (4)
9. Frame Ground (2)
10.  Frame Ground (1 )
11. Fuse Box (1)
12. Ignition Fuse I0 A
13. Fan Fuse 15 A
14. ECU Fuse 15 A
15. Relay Box
16. Fuel Pump Relay
17. ECU Main Relay
18. Radiator Fan Relay
19.  ABS Hydraulic Unit
20. Meter Unit
21.  Yellow Engine Warning Indicator Light (LED)
22. Ignition Switch
23. Engine Stop switch
24. Starter Button
25. Fan Motor
26. Stick Coils
27. Spark Plugs
28. Air Switching Valve
29. Fuel Injector #I
30. Fuel Injector #2
31. Idle Speed Control Valve Actuator
32. Throttle Sensor
33. Intake Air Pressure Sensor
34. Vehicle-down Sensor
35. Intake Air Temperature Sensor
36. Gear Position Sensor
37. Water Tmp6fature Sensor
38. Oxygen sensor
39. Crankshaft sensor
40. Purge Valve (Equipped Models)

Color Codes:

BK: Black

GY: Gray

PU: Purple

BL: Blue

LB: Light Blue

 R: Red

BR: Brown

G: Green

LO: Light Green

V: Violet

CH: Chocolate

0: Orange

W: White

DG: Dark Green

P: Pink

Y: Yellow

Terminal Numbers of ECU Connectors

Terminal Names

1. ldle Speed Control Valve Actuator: GI0
2. ldle Speed Control Valve Actuator: GIR
3. Unused
4. Green Neutral Indicator Light (LED): LG
5. Purge Valve (Equipped Models): WY
6. Unused
7. Throttle Sensor: YMI
8. Intake Air Pressure Sensor: YBL
9. Oxygen Sensor: BW
10.  Power Supply to Sensors: BL
11.  Vehicle-down Sensor: YIG
12.  Gear Position Sensor: LGIR
13.  Crankshaft Sensor (+): Y
14.  Power Supply to Rear Wheel Rotation Sensor (EX400H): BKIO
15.  Rear Wheel Rotation Sensor Signal (from ABS Hydraulic Unit, EX400GlJ): G
16.  Power Supply to ECU (from ECU Main Relay): BW
17. External Communication Line (Kawasaki Diagnostic System): GYIBL
18. ldle Speed Control Valve Actuator: GN
19. ldle Speed Control Valve Actuator: G/BK
20.  Unused
21. Unused
22. Water Temperature Sensor: 0
23. Unused
24. Unused
25. Oxygen Sensor: BR/R
26. Intake Air Temperature Sensor: R
27. Unused
28. Ground for Sensors: BR/BK
29. Oxygen Sensor Heater: PIBK
30. Crankshaft Sensor (-): Y/BK
31. Rear Wheel Rotation Sensor Output: LGNV
32. Rear Wheel Rotation Sensor (EX400H): WIG
33. Unused
34. Ground for Control System: BW
35. Power Supply to ECU (from Battery): W/BK
36. Engine Stop Switch: R
37. Starter Lockout Switch: RIG
38. Starter Button: BWR
39. Fuel Pump Relay: BRN
40. Air Switching Valve: FUBL
41. Fuel Injector #2: BUR
42. Fuel Injector #I: BUBK
43. Stick Coil #I : BK
44. Side Stand Switch: GIBK
45. Radiator Fan Relay: PIBL
46. External Communication Line (Kawasaki Diagnostic System): LG/BK
47. Meter Unit (Tachometer): LB
48. Meter Communication Line: BUO
49. Unused
50. Ground for Fuel System: BW
51. Ground for Ignition System: BW
52. Stick Coil #2: BK/O

See also: