FD2 - Check Injector Electrical Signal

CAUTION: Do not connect a test lamp to the injector harness. Damage may result to the Powertrain Control Module (PCM).

- Check the electrical continuity of the injector between each injector and the PCM as follows:

- Disconnect the fuel injector lead and insert the continuity checker from Rotunda Fuel Injector Tester/Cleaner 113-0001A or equivalent into the injector lead plug.

- Start or crank engine.

- Observe whether the continuity checker blinks (showing a completed circuit for the injector being tested).

- Repeat the check for each injector.

- Do all injector circuit leads show continuity?

YES -- Go to FD3. FD3 - Check Fuel Injector Resistance

NO -- Check for 12 volts at each injector wire with key On. Service wire as required.