Injector Driver Module 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 ms/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 ms/DIV (X), DC range

Vehicle condition
Idle after warm up (no load, P/S oft, NC oft)