Hyundai HL955 Manual page 116

Fault code Meaning of the fault code
(Hex) possible reason for fault detection
34
S.C. to battery voltage or O.C. at turbine
speed input
TCU measures a voltage higher than
7.00V at speed input pin
· Cable is defective and is contacted to
vehicle battery voltage
· Cable has no connection to TCU
·Speed sensor has an internal defect
· Connector pin is contacted to battery
voltage or has no contact
35
S.C. to ground at turbine speed input
TCU measures a voltage less than 0.45V
at speed input pin
· Cable/connector is defective and is
contacted to vehicle ground
· Speed sensor has an internal defect
36
Logical error at turbine speed input
TCU measures a turbine speed over a
threshold and at the next moment the
measured speed is zero
· Cable/connector is defective and has
bad contact
· Speed sensor has an internal defect
·Sensor gap has the wrong size
37
S.C. to battery voltage or O.C. at internal
speed input
TCU measures a voltage higher than
7.00V at speed input pin
· Cable is defective and is contacted to
vehicle battery voltage
· Cable has no connection to TCU
·Speed sensor has an internal defect
· Connector pin is contacted to battery
voltage or has no contact
38
S.C. to ground at turbine speed input
TCU measures a voltage less than 0.45V
at speed input pin
· Cable/connector is defective and is
contacted to vehicle ground
· Speed sensor has an internal defect
39
Logical error at internal speed input
TCU measures a internal speed over a
threshold and at the next moment the
measured speed is zero
· Cable/connector is defective and has
bad contact
· Speed sensor has an internal defect
·Sensor gap has the wrong size
3A
S.C. to battery voltage or O.C. at output
speed input
TCU measures a voltage higher than
12.5V at speed input pin
· Cable is defective and is contacted to
battery voltage
· Cable has no connection to TCU
·Speed sensor has an internal defect
· Connector pin is contacted to battery
voltage or has no contact
※ Some fault codes are not applied to this machine.
Reaction of the TCU
OP mode : Substitute clutch
control
If a failure is existing at
output speed,
TCU shifts to neutral
OP mode : Limp home
OP mode : Substitute clutch
control
If a failure is existing at
output speed,
TCU shifts to neutral
OP mode : Limp home
OP mode : Substitute clutch
control
If a failure is existing at
output speed,
TCU shifts to neutral
OP mode : Limp home
OP mode : Substitute clutch
control
OP mode : Substitute clutch
control
OP mode : Substitute clutch
control
Special mode for gear
selection
OP mode : S u b s t i t u t e
clutch control
If a failure is existing at
turbine speed,
TCU shifts to neutral
OP mode : Limp home
3-60
Possible steps to repair
·
Check the cable from TCU to the
sensor
·
Check the connectors
·
Check the speed sensor
·
Check the cable from TCU to the
sensor
·
Check the connectors
·
Check the speed sensor
※
This fault is reset after power up of
TCU
·
Check the cable from TCU to the
sensor
·
Check the connectors
·
Check the speed sensor
·
Check the sensor gap
·
Check the cable from TCU to the
sensor
·
Check the connectors
·
Check the speed sensor
·
Check the cable from TCU to the
sensor
·
Check the connectors
·
Check the speed sensor
·
Check the cable from TCU to the
sensor
·
Check the connectors
·
Check the speed sensor
·
Check the sensor gap
※
This fault is reset after power up of
TCU
·
Check the cable from TCU to the
sensor
·
Check the connectors
·
Check the speed sensor