Advertisement
Fault code
Meaning of the fault code
(Hex)
possible reason for fault detection
23
S.C. to battery voltage at load sensor
input
The measured voltage is too high:
Cable is defective and is contacted to
battery voltage
Load sensor has an internal defect
Connector pin is contacted to battery
voltage
24
S
S
.C. to ground or O.C. at load sensor
input
The measured voltage is too low:
Cable is defective and is contacted to
vehicle ground
Cable has no connection to TCU
Load sensor has as internal defect
Connector pin is contacted to vehicle
ground or is broken
25
S
S
.C. to battery voltage or O.C. at
transmi-ssion 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
26
S
S
.C. to battery voltage or O.C. at
transmi-ssion sump temperature sensor
input
The measured voltage is too low:
Cable is defective and is contacted to
vehicle ground
Temperature sensor has an internal
defect
Connector pin is contacted to vehicle
ground
27
S
S
.C. to battery voltage or O.C. at
retarder 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
Reaction of the TCU
Retarder function is affected
TCU uses default load
OP mode : Normal
Retarder function is affected
TCU use default load
OP mode : Normal
No reaction, TCU use default
temperature
OP mode : Normal
No reaction, TCU uses default
temperature
OP mode : Normal
No reaction, TCU uses default
temperature
OP mode : Normal
3-17
Possible steps to repair
Check the cable from TCU to the
sensor
Check the connectors
Check the load sensor
Check the assembly tolerances of
load sensor
Availability of retarder depends on
default load
Check the cable from TCU to the
sensor
Check the connectors
Check the load sensor
Check the assembly tolerances of
load sensor
Availability of retarder depends on
default load
Check the cable from TCU to the
sensor
Check the connectors
Check the temperature sensor
Check the cable from TCU to the
sensor
Check the connectors
Check the temperature sensor
Check the cable from TCU to the
sensor
Check the connectors
Check the temperature sensor
Advertisement
