DACMC - 2.3L Or 5.2L

speakers (convertible) contains a mixture of the engine noise cancellation and ESE frequency with the audio signals from the ACM.

The audio DSP module requires PMI when it is replaced.

DACMC - 2.3L Or 5.2L

The DACMC ANC and ESE functions only operate while the engine is running, and the luggage compartment lid and all doors are closed.

The DACMC is a digital signal processor that consists of an internal analog/digital converter and tone generator.

For ANC, the DACMC uses engine rotation speed data, engine torque data, accelerator pedal position data, and ANC microphone input signals to calculate the targeted frequency needed to cancel engine noise within the passenger compartment. For ESE, the DACMC uses engine rotation speed data, engine torque data, and accelerator pedal position data from the PCM to calculate the targeted frequency needed to enhance engine noise within the passenger compartment. The DACMC engine noise cancellation signals are output by the ACM to the audio DSP module as fluctuating AC voltage. The audio DSP module sends the signal to the LHF and RHF door woofer speakers, and right and left parcel shelf full-range (without Shaker) or coaxial (with Shaker) speakers (coupe) or RHR and LHR quarter panel full-range (without Shaker) or coaxial (with Shaker) speakers (convertible) as fluctuating AC voltage. The DACMC ESE frequency signals are output by the ACM to the audio DSP module as fluctuating AC voltage. The audio DSP module sends the signal to the LHF and RHF door woofer and right and left parcel shelf (with 5.2L) speakers as fluctuating AC voltage.

The DACMC is contained within the ACM.

The DACMC and ACM require separate PMI procedures when the ACM is replaced.

FCIM

The FCIM audio functions can be operated with the ignition in RUN, ACC, or OFF.

The FCIM audio system buttons provide one of the methods through which the customer interacts with the infotainment system.

The FCIM is separate from the ACM.

The FCIM requires PMI when it is replaced.

FDIM

The FDIM can be operated with the ignition in RUN, ACC, or OFF.

The capacitive touch FDIM provides one of the methods through which the customer interacts with the infotainment system. For more information, refer to “Using the Touchscreen” in the Owner's Literature.

The FDIM is attached to the APIM.

As the FDIM does not communicate on the CAN, the APIM acts as the proxy for all FDIM inputs and outputs requiring CAN communication. Communication between the FDIM (including FDIM customer inputs) and APIM is accomplished via the LVDS (Low Voltage Differential Signaling) cable. The FDIM power and ground are provided by the APIM through this cable as well.

LVDS (Low Voltage Differential Signaling) Cable

The four circuit shielded LVDS (Low Voltage Differential Signaling) cable provides power and ground from the APIM to the FDIM and is also the means by which data is transmitted from the APIM to the FDIM and from the FDIM to the APIM.

Noise Suppression Equipment

The radio frequency suppression equipment reduces interference transmitted through the speakers by the engine, ignition, and electrical systems. When installing any new radio suppression equipment components, make sure that a good contact is made at all connections.

Remote USB Port/Cable