9E
O.C. AT RETARDER
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
retarder solenoid has an
internal defect
connector has no
connection to TCU
no reaction
OP-mode: normal
check the cable from
TCU to the retarder
solenoid
check the connectors
from retarder solenoid
to TCU
check the resistance
1)
of retarder solenoid
1)
see chapter 4
9F
S.C. TO BATTERY VOLTAGE AT
RETARDER SOLENOID
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
retarder solenoid has an
internal defect
connector pin is contacted
to battery voltage
no reaction
OP-mode: normal
check the cable from
TCU to the retarder
solenoid
check the connectors
from retarder solenoid
to TCU
check the resistance
1)
of retarder solenoid
1)
see chapter 4
A1
S.C. TO GROUND AT DIFFLOCK
OR AXLE CONNECTION
SOLENOID
TCU detected a wrong
voltage at the output pin, that
looks like a s.c. to vehicle
ground
cable is defective and is
contacted to vehicle
ground
difflock solenoid has an
internal defect
connector pin is contacted
to vehicle ground
no reaction
OP-mode: normal
check the cable from
TCU to the difflock
solenoid
check the connectors
from difflock solenoid
to TCU
check the resistance
1)
of difflock solenoid
1)
see chapter 4
A2
S.C. TO BATTERY VOLTAGE AT
DIFFLOCK OR AXLE
CONNECTION SOLENOID
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
difflock solenoid has an
internal defect
connector pin is contacted
to battery voltage
no reaction
OP-mode: normal
check the cable from
TCU to the difflock
solenoid
check the connectors
from difflock solenoid
to TCU
check the resistance
1)
of difflock solenoid
1)
see chapter 4
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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