Audi TT 2016 Introduction Manual page 38

System response to faults
As a fully integrated system, the damper control system
has self-diagnostic capability. Any detected system faults
are indicated to the driver by a fault message in the instru-
ment cluster. Depending on the nature of the fault, the
system response can range from a partial shut-down to a
full shut-down of the system.
If a damper can no longer be activated electrically, it does
not affect the activation of the other 3 intact dampers.
However, the driver can no longer change to a different
mode, and the dampers are controlled in auto mode. If ESC
has been deactivated by the driver, it is activated automati-
cally in these cases. The same system response is triggered
when a fault is detected in a ride height sensor and the
measured data from this sensor is no longer available.
In the event of failure of two dampers, the system is shut
down. In this case, corrective actions are no longer per-
formed. If ESC has been deactivated by the driver, it is
activated automatically. The same system response occurs
when a fault is detected in a ride height sensor and the
measured data from this sensor is no longer available.
If it is no longer possible to electrically activate the
dampers (for example, due to relevant control module
faults), then the smallest possible damping forces will be
produced by the dampers. Although the suspension setup
is very comfortable, handling remains stable in driving
dynamics terms.
Service operations
Address Word
The system is accessed through Address Word 14 using the
VAS Scan Tool. Electronic Damping Control Module J250 is
integrated into the component protection system.
System initialization - learning control positions
The damping system must be initialized after the following
repairs:
• replacing control module J250.
• removing or replacing one or more vehicle level
sensors.
• replacing or removing and installing the dampers.
The characteristics of the level sensors are stored in the
control module. When the system is initialized, the control
module reads the data from the vehicle level sensors. The
control module knows the assignment position of each
sensor and converts the data to the actual ride level. The
control module also knows the unladen height of the
vehicle as a reference.
34
Damper control
Fault!
You can continue driving
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