Fuel Injector Control Module: Testing and Inspection

INJECTOR DRIVER MODULE INSPECTION [L3 WITH TC]

1. Inspect using the wave profile.




- If any incorrect voltage is detected, inspect the related system(s), wiring harnesses and connector(s).




Fuel Injector Signal (+)

Injector driver module terminals
- Fuel injection No.1: 1 F(+) - Body ground(-)
- Fuel injection No.2: 1A(+) - Body ground(-)
- Fuel injection No.3: 1A(+) - Body ground(-)
- Fuel injection No.4: 1 F(+) - Body ground(-)
Oscilloscope setting
- 25 V/DIV (Y), 0.2 minutes/DIV (X), DC range
Vehicle condition
- Idle after warm up (no load, P/S off, A/C off)




Fuel Injector Signal (-)

Injector driver module terminals
- Fuel injection No.1:1 E(+) - Body ground(-)
- Fuel injection No.2:1 B(+) - Body ground(-)
- Fuel injection No.3:1C(+) - Body ground(-)
- Fuel injection No.4: 1 D(+) - Body ground(-)
Oscilloscope setting
- 25 V/DIV (Y), 0.2 minutes/DIV (X), DC range
Vehicle condition
- Idle after warm up (no load, P/S off, A/C off)