Test 13 - Fuel Injector Circuits (Code 33)
- Disconnect MCU terminal connectors at MCU, and fuel injectors. Check circuits between pin 21 and injectors A and B. Check circuits between pin 22 and injectors C and D. Repair or replace circuits that do not have continuity or are grounded.
- Turn ignition on. Check for 12 volts at dropping resistor side of fuel injector terminals. If voltage is not present, check dropping resistor, main relay and ignition switch.