Fuel Injector Circuit Diagnosis
Fuel Injector Circuit Diagnosis
Circuit Description
The control module enables the appropriate fuel injector pulse for each cylinder. Ignition voltage is supplied to the fuel injectors. The control module controls each fuel injector by grounding the control circuit via a solid state device called a driver.
Diagnostic Aids
* Performing the Fuel Injector Coil Test may help isolate an intermittent condition. Refer to Fuel Injector Diagnosis (w/J39021 or w/Tech 2) Fuel Injector Diagnosis (w/CH47976). Fuel Injector Diagnosis (w/J39021 or w/Tech 2) Fuel Injector Diagnosis (With CH 47976)
* For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections in Diagnostic Aids. Component Tests and General Diagnostics
Test
