Alfa Romeo 159 Training Material page 250

ELECTRICAL
SYSTEM
Steering column stalk (DEV)
The DEV integrates the electronics for controlling the windscreen/rear window wiper and the external lights,
windscreen/rear window wiper/washer, cruise control, trip computer functions, rain/dusk sensor and light dimmer. It is
connected to the dashboard and front wiring harnesses and transmits controls to the NBC via the A-BUS serial line.
Radio receiver node (NRR)
The NRR BLAUPUNKT is connected to the B-CAN and the dashboard wiring. The connectors are used to interface
with an external audio amplifier.
External audio amplifier (DSP) Opt.
The BOSE DSP (Digital Sound Processor) is an electronic component connected to the audio wiring harness. The
DSP receives the signal from the NRR audio output. From the NRR it receives enabling for activation and is capable
of outputting an acknowledgement signal to the NRR. It is usually located in the boot.
Radio navigator (RNV) Opt.
The RNV pictogram navigator (Magneti Marelli) is an alternative to the NRR.
Computerised info node (NIT)
The NIT (Bosch) is connected to the B-CAN, the I-CAN and the dashboard wiring. Connectors are provided with
connection for external microphone and handset. The NIT can interact with the Convergence node.
Convergence node (NCV) Opt.
The NCV is a device connected to the B-CAN capable of interacting with the NIT via a Bluetooth cell phone. It
interfaces with the controls on the rearview mirror and with the free-hands microphone on the front, central ceiling
light.
Front door node (NPA)
The NPA is connected to the B-CAN and to the respective front door wiring. It manages the electrical functions of the
front doors, the electrical/heated mirrors, the puddle lights and the rear ceiling lights. The NPA is present when the
rear doors are not fitted with electrical window winders and it manages the electrical functions of both rear doors. The
NPA also makes the external temperature reading acquired by the sensor built into the mirror available.
Driver's door node (NPG)
The NPG is connected to the B-CAN and to the respective front door wiring. It manages the electrical functions of the
respective door, the external mirror on driver's side and the rear ceiling light. It is connected to the door control panel
(PCP). As the NPA, the NPG also makes the external temperature signal available to the network.
Passenger's door node (NPP)
The NPP is connected to the B-CAN and to the respective front door wiring. It manages the electrical functions of the
respective door, the rear ceiling light and the external mirror. It is connected to the door control panel (PCS) and
houses a connector for directly connecting the wiring provided with the respective external mirror.
Boot node (NVB)
The NVB is an electronic component connected to the B-CAN and to the rear wiring harness. It manages the
electrical functions of the rear doors, particularly when these are equipped with electrical window winders.
Passenger control ECU (CCP)
The CCP is a component connected to the respective front door. It manages the electrical window winder power and
signal.
Control panel on driver's door (PCP)
The PCP module integrates the controls on driver's door and is connected to the NPG via the front door wire on
driver's side. The PCP receives dimmed power for lighting the ideograms and houses the following controls:
External mirror movement/folding
Front window winders
Rear window winders
Rear window winder cut-out with respective indicator LED.
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