NOTE:
The center roof antenna is integrated with the antenna amplifier.
Antenna amplifier inspection
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Front scuff plate.
b. Rear scuff plate.
c. B-pillar lower trim.
d. Front seat belt adjusting cover.
e. Front seat belt upper anchor installation bolt.
f. B-pillar upper trim.
g. Trunk board.
h. Trunk end trim.
i. Trunk side trim.
j. D-pillar trim.
k. C-pillar trim.
3. Remove the rear passenger's assist handle..
4. Partially peel back the headliner.
NOTE:
Be careful not to peel back the headliner excessively. Otherwise it could create a fold-seam in the headliner.
5. Connect the negative battery cable..
6. Switch the ignition ON (engine off).
7. Turn the audio unit power on.
8. Tune in the radio.
9. Verify that the battery voltage is supplied to antenna amplifier terminal A.
If the battery voltage cannot be verified, inspect the audio unit and antenna feeder.
If the battery voltage can be verified, go to the feeder line inspection.
Feeder line inspection
1. Disconnect the negative battery cable..
2. Remove the center roof antenna.
3. Verify that there is no continuity between center roof antenna sections A and B and E (with AM/FM/SIRIUS type only)
AM/FM type
AM/FM/SIRIUS type
If there is continuity, replace the center roof antenna.
4. Install the center roof antenna.
5. Verify that the continuity between the center roof antenna terminals is as indicated in the table.
AM/FM type
AM/FM/SIRIUS type
If the continuity is not as indicated in the table, verify the installation condition of the center roof antenna installation nut.
AM/FM type
AM/FM/SIRIUS type
If the installation condition of the center roof antenna installation nut is normal, replace the center roof antenna.
Speaker [Without Bose®]
Purpose
Converts the audio signal from the audio unit to sound.
Function
Full-range speakers, which can output wide-range sound from low to high frequency,
have been adopted.
Specification
Item
Front door speaker
Rear speaker ...
Predictive control
Applies to: vehicles with Audi adaptive cruise control and efficiency
assist
With predictive control, efficiency assist adapts
the set speed in adaptive cruise control (1), fig. 108 based on detected speed
limits and the upcoming route. Once the system
no longer detects any incidents ahead, adaptive ...
Fuel Injector
Purpose, Function
Promotes atomization of fuel by injecting it from the multiple holes.
Injects fuel according to the control signal from the PCM.
Construction
The fuel injector is installed to the cylinder head.
The fuel injector has multiple injection hole ...