3C
LOGICAL ERROR AT OUTPUT
SPEED INPUT
TCU measures a output
speed over a threshold and
at the next moment the
measured speed is zero
cable / connector is
defective and has bad
contact
speed sensor has an
internal defect
sensor gap has the wrong
size
special mode for gear
selection
OP-Mode: substitute
clutch control
if a failure is existing at
turbine speed,
TCU shifts to neutral
OP-Mode: limp home
check the cable from
TCU to the sensor
check the connectors
check the speed
sensor
check the sensor gap
This fault is reset after
power up of TCU
3E
OUTPUT SPEED ZERO DOESN’T
FIT TO OTHER SPEED SIGNALS
if transmission is not neutral
and the shifting has finished,
TCU measures outputspeed
zero and turbine speed or
internal speed not equal to
zero.
speed sensor has an
internal defect
sensor gap has the wrong
size
special mode for gear
selection
OP-Mode: substitute
clutch control
if a failure is existing at
turbine speed,
TCU shifts to neutral
OP-Mode: limp home
check the sensor
signal of output speed
sensor
check the sensor gap
of output speed
sensor
check the cable from
TCU to the sensor
This fault is reset after
power up of TCU
56
ENGINE CONF TIMEOUT
Timeout of CAN-message
ENGINE CONF from engine
controller
interference on CAN-Bus
CAN wire/connector is
broken
CAN wire/connector is
defective and has contact
to vehicle ground or
battery voltage
OP-Mode: substitute
clutch control
check engine
controller
check wire of CAN-
Bus
check cable to engine
controller
57
EEC1 TIMEOUT
Timeout of CAN-message
EEC1 from EEC controller
interference on CAN-Bus
CAN wire/connector is
broken
CAN wire/connector is
defective and has contact
to vehicle ground or
battery voltage
OP-Mode: substitute
clutch control
check EEC controller
check wire of CAN-
Bus
check cable to EEC
controller
Fault
Code
(hex)
MEANING OF THE FAULT
CODE
Possible reason for fault
detection
Reaction of the
TCU
Possible steps
to repair
Remarks
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