Fault
Code
(hex)
MEANING OF THE FAULT
CODE
Possible reason for fault
detection
Reaction of the
TCU
Possible steps
to repair
Remarks
S.C. TO BATTERY
VOLTAGE AT DLM
INDICATOR LAMP
OUTPUT
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
No reaction
OP-Mode: normal
Check the cable from
TCU to the device
Check the connectors
Check the resistance
of device
1)
see chapter 4
O.C. DLM INDICATOR
LAMP OUTPUT 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
No reaction
OP-Mode: normal
Check the cable from
TCU to the device
Check the connectors
Check the resistance
of device
1)
see chapter 4
O.C. AT RELAY REVERSE
WARNING ALARM
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
Backup alarm device has an
internal defect
Connector has no
connection to TCU
No reaction
OP-Mode: normal
Check the cable from
TCU to the backup
alarm device
Check the connectors
from backup alarm
device to TCU
Check the resistance 1)
of backup alarm
device
1)
see chapter 4
8E
8F
93
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