Kawasaki STX-15F service manual ECU connector B in this chapter figure

FUEL SYSTEM (DFI) 3-61

ECU

•Check the ECU power source voltage with a tester [A]. ○Position the terminal in accordance with terminal numbers

of ECU connector [B] in this chapter figure.

ECU Power Source Inspection

Tester Connections:

2(R/G) Terminal – Battery (−) Terminal

9(R/W) Terminal – Battery (−) Terminal

28(Y/R) Terminal – Battery (−) Terminal

30(R/Y) Terminal – Battery (−) Terminal

Terminal Voltage:

Ignition Switch OFF:

2 (R/G) Terminal → Battery Voltage

9 (R/W) Terminal → 0 V

28 (Y/R) Terminal → 0 V

30 (R/Y) Terminal → 0 V

Ignition Switch ON:

2 (R/G) Terminal → Battery Voltage

9 (R/W) Terminal → Battery Voltage

28 (Y/R) Terminal → 0 V

30 (R/Y) Terminal → 0 V

Ignition Switch ON and Start Button ON:

All Terminals → Battery Voltage

○Pushing the start button, run the engine 3 ∼ 4 seconds. ○Wait 15 seconds before using the starter again.

If the tester does not read as specified, check the follow- ing:

Power Source Wiring (see wiring diagram below) Main Fuse 20 A (see Electrical System chapter) ECU Main Relay (see DFI Power Source section) Ignition Switch (see Electrical System chapter) Start Switch (see Electrical System chapter)