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INJECTOR DRIVER MODULE INSPECTION [L3 Turbo]

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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: 1F(+) - Body ground(-)
  • Fuel injection No.2: 1A(+) - Body ground(-)
  • Fuel injection No.3: 1A(+) - Body ground(-)
  • Fuel injection No.4: 1F(+) - 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: 1E(+) - Body ground(-)
  • Fuel injection No.2: 1B(+) - Body ground(-)
  • Fuel injection No.3: 1C(+) - Body ground(-)
  • Fuel injection No.4: 1D(+) - 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)