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GAP Diagnostic 2023-09-12 All Rights Reserved
User Manual G3 units: Version 37, Firmware V4.0
Car Configuration File
The
C
ar
C
onfiguration
F
ile, or CCF, contains configurations needed by all systems or ECUs present on
the CAN networks. An ECU (vehicle dependent) broadcasts the content of the CCF at regular intervals
on the CAN networks. Each ECU knows its configurations and configurations of other ECUs if needed.
Other ECUs have a backup of the CCF stored in their memory and may be used by the vehicle when
one copy is corrupted. All vehicles except the L322 2002 to 2004 use this method.
There are two different types of CCF settings:
•
Tested settings are available for all IIDTools. Not available on 2017+
•
Untested settings give access to the whole CCF which includes tested and untested settings.
This is available upon request only except on 2017+ where its the default list.
Changing cri
-
tical settings may prevent the vehicle or subsystems from functioning normally. Do not
change setting(s) unless required and with full knowledge of possible consequences.
On 2017+, the Show Unsupported additional button is available at the bottom of the screen to
show settings that are suspected of having no effect.
Figure 94.
Show Unsupported button
Configurations of the BCM and LCM
(L322-02 L322-06)
For these vehicles, configurations are also saved to these ECUs and used only by themselves. When
a configuration is changed, it is programed into the corresponding ECU.
Configurations of the 10AS
(L316)
The 10AS is a write only ECU therefore the IIDTool cannot read thus know what settings are on or off.
The list is populated just to show values hence the write only warning. The Restore function does not
exist for this ECU.
As it’s a write all at once ECU, one cannot change an individual setting. This is why one needs to set
all settings prior to do a write, not just the ones requiring changes.
Notes :
Changing a configuration may not be sufficient for a feature to work:
• If the required hardware is not or still present in the vehicle.
• If the software or hardware version of a particular system does not support the functionality. For
example, on
L319-04 and L320-05,
the 3-turn flash feature is enabled in the Car Configuration
