Fuel Injector Heater Control Module
The fuel injector heater control module supplies direct battery voltage to the individual fuel injector heaters. The fuel injector heater ON time varies depending on ambient and engine coolant temperatures. The PCM may activate the fuel injector heaters any time the engine is running during cold ambient temperatures. The PCM monitors the fuel injector heater functionality and control. If a concern is present, a DTC will set. For additional information, refer to COLD START SYSTEM .