Hyundai HL955 Manual page 119

Fault code Meaning of the fault code
(Hex) possible reason for fault detection
6E
EEC2 timeout
Timeout of CAN-message EEC2 from
EEC controller
·Interference on CAN-Bus
·CAN wire/connector is broken
· CAN wire/connector is defective and
has contact to vehicle ground or battery
voltage
71
S.C. to battery voltage at clutch K1
The measured resistance value of the valve
is out of limit, the voltage at K1 valve is too
high
· Cable/connector is defective and has
contact to battery voltage
· Cable/connector is defective and has
contact to another regulator output of
the TCU
· Regulator has an internal defect
72
S.C. to ground at clutch K1
The measured resistance value of the valve
is out of limit, the voltage at K1 valve is too
low
· Cable/connector is defective and has
contact to vehicle ground
·Regulator has an internal defect
73
O.C. at clutch K1
The measured resistance value of the
valve is out of limit
· Cable/connector is defective and has no
contact to TCU
·Regulator has an internal defect
74
S.C. to battery voltage at clutch K2
The measured resistance value of the
valve is out of limit, the voltage at K2 valve
is too high
· Cable/connector is defective and has
contact to battery voltage
· Cable/connector is defective and has
contact to another regulator output of
the TCU
·Regulator has an internal defect
75
S.C. to ground at clutch K2
The measured resistance value of the valve
is out of limit, the voltage at K2 valve is too
low
· Cable/connector is defective and has
contact to vehicle ground
·Regulator has an internal defect
※ Some fault codes are not applied to this machine.
Reaction of the TCU
No reaction, TCU uses
default signal accelerator
pedal in idle position
OP mode : Normal
TCU shifts to neutral
OP mode : Limp home
If failure at another clutch
is pending
TCU shifts to neutral
OP mode : TCU shutdown
TCU shifts to neutral
OP mode : Limp home
If failure at another clutch
is pending
TCU shifts to neutral
OP mode : TCU shutdown
TCU shifts to neutral
OP mode : Limp home
If failure at another clutch
is pending
TCU shifts to neutral
OP mode : TCU shutdown
TCU shifts to neutral
OP mode : Limp home
If failure at another clutch
is pending
TCU shifts to neutral
OP mode : TCU shutdown
TCU shifts to neutral
OP mode : Limp home
If failure at another clutch
is pending
TCU shifts to neutral
OP mode : TCU shutdown
3-63
Possible steps to repair
·
Check EEC controller
·
Check wire of CAN-Bus
·
Check cable to EEC controller
·
Check the cable from TCU to the
gearbox
·
Check the connectors from TCU to
the gearbox
·
Check the regulator resistance*
·
Check internal wire harness of the
gearbox
* See page 3-74
·
Check the cable from TCU to the
gearbox
·
Check the connectors from gearbox
to TCU
·
Check the regulator resistance*
·
Check internal wire harness of the
gearbox
* See page 3-74
·
Check the cable from TCU to the
gearbox
·
Check the connectors from gearbox
to TCU
·
Check the regulator resistance*
·
Check internal wire harness of the
gearbox
* See page 3-74
·
Check the cable from TCU to the
gearbox
·
Check the connectors from gearbox
to TCU
·
Check the regulator resistance*
·
Check internal wire harness of the
gearbox
* See page 3-74
·
Check the cable from TCU to the
gearbox
·
Check the connectors from gearbox
to TCU
·
Check the regulator resistance*
·
Check internal wire harness of the
gearbox
* See page 3-74