MODIFIED BASIC 5PW YZF-R1P/YZF-R1PC WIRING …

1 MODIFIED BASIC 5PW. YZF-R1P/YZF-R1PC D. WIRING DIAGRAM (GRAY). MAIN HARNESS. (GRAY). WIRE SUB LEAD 1. D. R G F E Coil #1. 1 D. (BLACK). (GRAY) (BLACK). 22 1. (BLACK) (BLACK) (BLACK) (BLACK) (GRAY) (GRAY). 2 3 Coil #2. MAIN HARNESS WIRE SUB LEAD 4 MAIN HARNESS WIRE SUB LEAD 3 MAIN HARNESS WIRE SUB LEAD 2 2 D. 6 44 23 (BLACK). Regulator/. Rectifier Coil #3. 15. 5 23 D. (BLACK). Battery 7 21. 8 9 4 1. 1 4 6. ON Coil #4. OFF. 24 D. (BLACK). 9 10 11. 10 F. 11 6 32. Starter Motor 5 F Injector #1. 28. (GRAY). Also need a relay that FREE. PUSH Fuel Start Pump cuts power to ignition circuit Button RPM 4 6 F Injector #2. when FIA master kill switch is off (GRAY). or Ballast Resistor otherwise 43 Injector #3. Reg/Rec will keep motor running 7 F.

2 COLOR CODE (GRAY). Black Dark green Pink Yellow Black /White Blue /White Brown /White Green /White Orange /Black Red /Green Sky blue /White Yellow /Black 8 F Injector #4. Blue Green Red Black /Green Black /Yellow Blue /Yellow Brown /Green Green /Yellow Orange /Green Red /Blue White/Black Yellow /Green (GRAY). Brown Gray Sky blue Black /Blue Blue /Black Brown /Blue Green /Black Gray /Green Pink /White Red /White White/Red Yellow /Blue Crank 30. 34. Position 10. Sensor E 12. G 19. Chocolate Orange White Black /Red Blue /Red Brown /Red Green /Red Gray /Red Red /Black Red /Yellow White/Yellow Yellow /Red 27. G G 14. ECU Pins AIT. 1)(Orange) Coil #1 TPS (BLACK) (GRAY). 2)(Grey/Red) Coil #2. 3)(Black) - Gnd F 29. 4)(Yellow/Black) RPM - Multi Display E E 31.

3 5)(Red/Black) Injector #1 (BLACK). 6)(Green/Black) Injector #2 Inlet Air Press. Coolant Temp (BLACK). 7)(Blue/Black) Injector #3. 8)(Orange/Black) Injector #4. 9)(White/Blue) N/C. G 16. 10)(Blue) This pin provides 5 volts to various sensors. (BLACK). 20. 11) N/C. 22. 12)(White/Black) Cylinder ID Sensor 41. 13)(Black) - Gnd 17 44. 14)(Brown/White) Air Intake Temperature Sensor (GRAY) 18 (BLACK). 15)(Red/White) - +12v Atmos. Press. 25 Exup Servo 3 13 39. 16)(Pink/White) Intake Air Pressure Sensor 17)(Pink) Atmospheric Air Pressure Sensor D. 18)(White/Yellow) Speed Sensor 19) (Yellow) Throttle Position Sensor 20 (Black/Green) Control signals for the EXUP motor. 21) (Blue/White) This pin is pulled to ground when the start switch is engaged.

4 This signals the ECU to energize the fuel pump relay. (BLACK) (BLACK). 22)(Black/Red) Control signals for the EXUP motor. Speed Sensor 23)(Orange/Green) Coil #3 Cylinder ID. Sensor 24)(Grey/Green) Coil #4. 25)(Black) - Gnd 470 Ohm 26)(Brown/Red) Air injection solenoid control signal. No connection. Does not set code. According to service manual the air injection system is only active during idle and warm-up periods. 27)(Yellow/Red) Stock Connected to Pin 29. Resistor 28) (Red/Blue) This pin has battery voltage when the fuel-pump relay is energized. In the stock configuration it is in parallel with the fuel pump, and fuel injectors ( the relay supplies power to pin 28, the fuel pump, and the fuel injectors). Also, pin 28 is used to trigger various functions while in diagnostic mode.

5 In stock configuration this is accomplished by turning off the fuel pump relay via the run/stop switch. The ignition switch will perform the same function in the MODIFIED harness. 29) (Yellow/Red) Stock this pin is connected to ECU pin 27. When connected to ground the CO mode can be selected in addition to the DIAG mode when the units are powered up with both dash buttons depressed (must wait approx. eight seconds). 30)(Grey) Crankshaft Position Sensor Starting Circuit Cut-Off Relay 31)(Green/White) Coolant Temperature Sensor The starting circuit cut-off relay is a module that incorporates the starting cut-off relay along with the fuel system relay and a diode/zener 32)(Blue/Yellow) This pin is the control signal that energizes the fuel pump cut-off relay.

6 It does so by providing a ground to one side of the fuel pump relay coil. diode protection circuit. In the MODIFIED harness the staring cut-off relay and the circuitry associated with it is not used. The diode/zener diode 33) (Yellow/Black) Pin 33 controls the headlight relay. No connection. protection circuit remains connected across the staring solenoid coil as in the stock configuration. See ECU pin 21 for further discussion. 34)(Black/Blue) Sensor Gnd The fuel pump relay is also used. In the stock configuration the fuel pump relay controls power to ECU pin 28, the fuel pump, and the fuel 35)N/C injectors. In MODIFIED form the relay control power only to ECU pin 28 and, if desired, the fuel pump. 36)N/C The fuel injectors are wired directly to the ignition switch.

7 37)N/C. 38)(Yellow/Blue) Multi-Display - Comms 39) (White ) Always on battery voltage to ECU. ECU functions properly without. No connection. Multi-Function Display (Dash). 40)(Black/Yellow) Clutch switch position. No connection. Select multi-function display connections are maintained so that the display unit can be used to check for engine codes and used 41)(Yellow/Green) Lean angle cut-off switch position signal. In stock configuration this pin is connected to the lean angle cut-off switch. Connected to resistor if cut-off switch is eliminated. 470 Ohm 1/4W Resistor to Black/Blue (Pin 34). for diagnostic purposes. Battery power, ground, and the two signal leads from ECU pins 4 and 38 are required. If it is desired to use the 42)(Green/Yellow) Fan motor relay control.

8 No connection. display as a dash some additional changes will be necessary. Assuming the low-oil level sensor is not connected the oil light will flash. 43)(Blue/Black) Pin 43 is connected to ground. Signals ECU that side stand is in up position. The flashing can be stopped by connecting the Black/Red oil level sensor lead to a 470 one-quarter watt resistor that is connected 44)(White/Red) EXUP position signal. If left unconnected code 18 will be set. to ground. This is shown in the WIRING diagram. The exact same approach can be used to stop the fuel-level light from flashing also. In this case the Green/White lead is connected to ground via a 470 one-quarter watt resistor. This is also shown in the WIRING diagram. The neutral switch can be used in conjunction with the dash as shown or connected to a separate dashboard light.