PRE-RELEASE
Bus messages, Audio
| Bus messages, Audio |
For a further description of the car's bus system, see System overview, bus and diagnostics communication, petrol and System overview, bus and diagnostics communication, diesel .
| The head unit uses the following information |
|
Information
|
Value
|
From
|
The value is dependent on the following sensor input, signal or function
|
|
Ignition +B
|
ON/OFF
|
DICE
|
Ignition switch. The head unit uses the +B information only as logic voltage.
|
|
Key Correct
|
ON/OFF
|
TWICE
|
Immobilization function. The head unit uses the information for the audio system's theft protection function.
|
|
Vehicle speed
|
km/h, mph
|
MIU
|
RL wheel speed. The head unit uses the information for the function “Speed-dependent volume”.
|
|
Steering wheel controls
|
Arrow up, Arrow down, Vol +, Vol -, NXT, SRC
|
SID
|
The buttons' control module input. The head unit uses the information to control the function (perform the command) selected with the steering wheel switches.
|
|
Rheostat level
|
0-100%
|
SID
|
Rheostat control module input. The head unit uses the information to control the brightness of the head unit's front lighting.
|
|
Rheostat Night Panel
|
0-100%
|
SID
|
Rheostat control module input is reduced with a fixed value. The head unit uses the information to control Night Panel light brightness on the head unit's front lighting.
|
|
Night panel
|
ON/OFF
|
SID
|
Button. The main unit uses the information to switch on/off the “Night Panel” function. When switched on, brightness on the main unit's front lighting is reduced.
|
|
Display lighting
|
0-100%
|
SID
|
Rheostat control module input or light sensor, highest value. The head unit uses the information to control brightness on the head unit's front lighting.
|
|
Wheel speed
|
0-300 km/h
|
ESP
|
RL wheel speed sensor
|
|
Diagnostics communication
|
|
Tech 2
|
The control module must be live and the bus leads intact. For further information on the bus, see Bus and diagnostics communication.
.
|
| The head unit transmits the following information |
|
Information
|
Value
|
Used by
|
The value is dependent on the following sensor input, signal or function
|
|
RDS time
|
Hours, Minutes, Seconds
|
SID control module
|
RDS reception. The SID uses the information for the internal clock.
|
|
RDS date
|
0-31
|
SID control module
|
RDS reception. The SID uses the information for the internal clock.
|
|
RDS month
|
January - December
|
SID control module
|
RDS reception. The SID uses the information for the internal clock.
|
|
Diagnostics communication
|
-
|
Tech 2
|
The control module must be live and the bus leads intact. For further information on the bus, see Bus and diagnostics communication.
|
