radio AUDI A6 2005 C5 / 2.G Electrics System Training Manual

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Although functional modules are integrated into the
control unit for front information J523, the related
address words for diagnosis in the VAG tester are
retained.The control unit for front information J523 does not
support the Basic setting and actuator test
functions. The control unit for information J523 can
be flashed via the integrated CD drive.
Infotainment
Modules
Overview of the available
diagnostic functions
for each moduleControl unit for
front information
J523Amplifier,
2x20-wattRadio
RCD ROM drive
R92Navigation
with CD drive
J401
Control unit identificationX
Measured-value blocksX
Basic setting
Actuator test
CodingXX
AdaptationXXX
Flash programmingX
Read fault memoryX
Erase fault memoryX
Overview of the available diagnostic functions
for each module Overview of the address words of the modules
in the control unit for front information, which
are used in the tester
Control unit for
front information
J523Amplifier,
2x20-wattRadio
RCD ROM drive
R92Navigation
with CD drive
J401
Address word0747560E37
Diagnosis on the control unit for front information J523

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Overview of the measured-value blocks available
for the individual modules
ModuleDesignation
General measured-value blocks
for all modulesGeneral: Battery positive voltage, terminal status
MOST: Address, MOST FOT temperature, optical lowering
Status of ring break diagnosis line
Control unit identification:
Serial number, flash date, hardware and software version
Control unit for front information
J523Multimedia operating unit E380: Status of main buttons, status of knobs/pushbuttons,
volume controller status
Display: LCD display temperature
Signals: Terminal 58D, terminal 58S
Integrated amplifier,
2x20-wattStatus of input signals, status of mute lead, speed (GALA), temperature
Radio RRemote-feed antenna: Open circuit, OK, short circuit
Remote-feed ZF output: Open circuit, OK, short circuit
Transmitter receive-level (0... 100 dBµV)
CD ROM drive R92CD status: Button status (Play, Stop, etc.), Eject button status, status of functions (Repeat, Scan, etc.)
Control unit for navigation
with CD drive J401Route Info: Speed, direction of travel
GPS: Satellites received, status of remote-feed GPS antenna OK, short circuit, open circuit
GPS FIX: GPS information on satellite reception and position-finding
Drive: Status of CD drive, incorrect or no navigation CD inserted, Load Eject error,
CD drive overheating
Status of navigation CD
Longitude corrected: Arc degree, arc minute, arc second
Latitude corrected: Degree of longitude, minute of longitude, second of longitude
Height and angle of direction corrected: Height in metres, angle of direction in degrees
GPS date: Day, month, year or "invalid" if there is no GPS reception
GPS time: Hour, minute, second or "invalid" if there is no GPS reception
Front axle distance pulses, status
GPS level 1: Satellite ID with best and second-best reception
GPS level 2: Satellite ID with third-best reception

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Mobile baseplate diagnosis
The mobile baseplate is diagnosed as standard
using the address word 77 in the VAS tester.
A selective or sequential actuator test can be
performed to check the output of the audio signal to
the relevant sound system, radio mute operation,
and whether or not a switched-on phone was
detected.
Measured-value blocks
Measured-value blockDesignation
01General: Battery positive voltage
02MOST: MOST address, FOT temperature
03Status of ring break diagnosis line
05Input signals: PTT, Mobile inserted, Mobile switched on, Communication active
10Reception field strength of the mobile phone
11Status of external antenna for mobile baseplate
14Currently connected Bluetooth devices
19Microphone: Microphone voltage, microphone power consumption
20Number of bonded (known) Bluetooth devices
48Cut-off level of control unit for power management J644
80Control unit identification: Manufacturer codes
81Control unit identification: Serial number
130Status of Bluetooth antenna