3
DIAGNOSTICS
Automatic gearbox CF65/75/85 series
5-2
Deleting fault codes
After faults have been remedied, the ECU
memory must be deleted. This is done as
follows.
Press the arrow keys twice simultaneously. This
is the fault code reading mode. Press the
“MODE” key and hold it down until the red lamp
flashes three times (the first flash will be after
approx. three seconds, the second after approx.
10 seconds). All codes, active or inactive, have
now been deleted. Codes which return following
deleting and can therefore no longer be deleted
are active. Both types of fault need their causes
tracing and remedying as quickly as possible.
After the fault codes have been deleted the
ignition must be switched off and re-started;
otherwise it will not be possible to drive. This
can be seen from the flashing of the gear lever
position.
Inactive faults are automatically deleted by the
ECU if the fault no longer occurs after the
contact has been switched off and on 25 times.
It is not possible to remedy all fault codes. Fault
codes that cannot be found in the “Table of Fault
Codes” can best be remedied by an
Allison dealer.
He has test and diagnostic apparatus at his
disposal that can be connected to a special
diagnostic plug in the central box (next to the
DAVIE connector).
R
D
MODE
N
V300392
1
ᓻ 200337
https://www.truck-manuals.net/
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