23
S
.
C
.
TO BATTERY VOLTAGE AT
LOAD SENSOR INPUT
the measured voltage is too
high:
cable is defective and is
contacted to battery
voltag
e
load sensor has an
internal defect
connector pin is
contacted to battery
voltage
Re
tarder function is
affected
TCU uses default load
OP-Mode: normal
Check the cable from
TCU to the sensor
check the connectors
check the load sensor
sensor
check the assembly
tolerances of load
sensor
availability of retarder
depends on default load
Fault
Code
(hex)
MEANING OF THE FAULT
CODE
Possible reason for fault
detection
Reaction of the
TCU
Possible steps
to repair
Remarks
17
18
19
S.C. TO BATTERY
VOLTAGE AT TCU detected
a wrong voltage at the
output pin, that looks like
a s.c. to battery voltage
Cable is defective and is
contacted to battery
voltage
Device has an internal
defect
Connector pin is contacted
to battery voltage
O.C. AT
TCU detected a wrong
voltage at the output pin,
that looks like a o.c. for
this output pin
Cable is defective and has
no connection to TCU
Device has an internal
defect
Connector has no
connection to TCU
Check the cable from
TCU to device
Check the connectors
from device to TCU
Check the resistance
of device
S.C. TO GROUND AT
TCU detected a wrong
voltage at the output pin,
that looks like a s.c. to
vehicle ground
Customer specific
Check the cables from
TCU to feedback
axle connection switch
Check signals of the
feedback axle
connection switch
Cable is defective and is
contacted to vehicle
ground
Device has an internal
defect
Connector pin is
contacted to vehicle
ground
1) See chapter 4
Customer specific Check the cable from
TCU to device
Check the connectors
from to TCU
Check the resistance
of device
1) See chapter 4
Customer specific
1) See chapter 4
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