Controls and Operating
3-48
DESCRIPTION OF FAULT CODES FOR ERGO-CONTROL
Fault-
Code
(hex/dec)
SPN FMI MEANING OF THE FAULT CODEpos-
sible reason for fault detection
Reaction of the TCU Possible steps to
repair
Remarks
10 / 16 5001 12 LOGICAL ERROR AT DIRECTION
SELECT SIGNAL 3RD SHIFT LEVER
TCU detected a wrong signal
combination for the direction
• cable from shift lever 3 to TCU is
broken
• cable is defective and is contacted to
battery voltage or vehicle ground
• shift lever is defective
TCU shifts transmission to neutral
if selector active
OP-Mode: transmission shutdown
if selector active
• check the cables
from TCU to shift
lever 3
• check signal
combinations of
shift lever positions
F-N-R
• if shift lever is a
CAN shift lever
check CAN cable/
shifter/device
fault is cleared
if TCU detects
a valid neutral
signal for the
direction at the
shift lever
11 / 17 5000 12 LOGICAL ERROR AT GEAR RANGE
SIGNAL
TCU detected a wrong signal
combination for the gear range
• cable from shift lever to TCU is broken
• cable is defective and is contacted to
battery voltage or vehicle ground
• shift lever is defective
TCU shifts transmission to neutral
OP-Mode: transmission shutdown
• check the cables
from TCU to shift
lever
• check signal
combinations of
shift lever positions
for gear range
fault is taken
back if TCU
detects a valid
signal for the
position
12 / 18 5010 12 LOGICAL ERROR AT DIRECTION
SELECT SIGNAL
TCU detected a wrong signal
combination for the direction
• cable from shift lever to TCU is broken
• cable is defective and is contacted to
battery voltage or vehicle ground
• shift lever is defective
TCU shifts transmission to neutral
OP-Mode: transmission shutdown
• check the cables
from TCU to shift
lever
• check signal
combinations of
shift lever positions
F-N-R
fault is taken
back if TCU
detects a valid
signal for the
direction at the
shift lever
13 / 19 5020 12 LOGICAL ERROR AT ENGINE
DERATING DEVICE
TCU detected no reaction of engine
while derating device active
after selecting neutral, TCU
changes to OP-Mode limp home
• check engine
derating device
This fault is
reset after
power up of
TCU
15 / 21 5040 12 LOGICAL ERROR AT DIRECTION
SELECT SIGNAL 2. SHIFT LEVER
TCU detected a wrong signal
combination for the direction
• cable from shift lever 2 to TCU is
broken
• cable is defective and is contacted to
battery voltage or vehicle ground
• shift lever is defective
TCU shifts transmission to neutral
if selector active
OP-Mode: transmission shutdown
if selector active
• check the cables
from TCU to shift
lever 2
• check signal
combinations of
shift lever positions
F-N-R
fault is taken
back if TCU
detects a valid
neutral signal
for the
direction at the
shift lever
16 / 22 5050 12 LOGICAL ERROR AT AXLE
CONNECTION
feedback axle connection measured by
TCU and output signal axle connection
don't fit
• axle can’t be connected or
disconnected due to mechanical
problem
• one of the cables from feedback axle
connection -switch to TCU is broken
OP-Mode: normal • check the cables
from TCU to
feedback axle
connection switch
• check signals of
the feedback axle
connection switch
25 / 37 5110 3 S.C. TO BATTERY VOLTAGE OR O.C.
AT T R AN SMISSION SUMP
TEMPERATURE SENSOR INPUT
the measured voltage is too high:
• cable is defective and is contacted to
battery voltage
• cable has no connection to TCU
• temperature sensor has an internal
defect
• connector pin is contacted to battery
voltage or is broken
no reaction,
TCU uses default temperature
OP-Mode: normal
• check the cable
from TCU to the
sensor
• check the
connectors
• check the
temperature
sensor
26 / 38 5110 4 S.C. TO GROUND AT TRANSMISSION
SUMP TEMPERATURE SENSOR
INPUT
the measured voltage is too low:
• cable is defective and is contacted to
vehicle ground
no reaction, TCU uses default
temperature
OP-Mode: normal
• check the cable
from TCU to the
sensor
• check the
connectors
• check the
temperature
sensor
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