Dakota 2WD V8-4.7L VIN J (2005)
and the EMIC responds by providing the appropriate interior lighting control outputs through its internal courtesy lamp driver circuits, electronic
dimming level messages to other modules over the CAN data bus, and/or the proper PWM outputs to control dimming levels through several panel
dimmer illumination control driver circuits.
The headlamp switch can be diagnosed using conventional diagnostic tools and methods. However, proper testing of the multiplexed inputs to and PWM
processing of the EMIC requires the use of a diagnostic scan tool.
