Hyundai Yanmar TNV Series Manual page 78

No. Item
19 Sensor 5V failure Monitoring voltage
is approx. 0 V.
Monitoring voltage
is 4.5 V or less.
Monitoring voltage
is 5.5 V or more.
20 E-ECU overheat E-ECU temperature
alarm exceeds 105°C.
Alarm is canceled
when E-ECU tem-
perature decreases
to 100°C.
(Option can change)
21 Oil pressure low Oil pressure switch
fails to turn off when
engine is running.
22 Charge failure Charge switch fails
to turn off when
engine is running.
23 Coolant tempera- Coolant tempera-
ture abnormal ture switch turns on.
24 Air cleaner block- Air cleaner switch
age alarm turns on.
25 Oily water separa- Oily water separa-
tor alarm tor switch turns on.
26 Coolant tempera- Coolant tempera-
ture high alarm ture is 115°C or
higher.
Alarm is canceled
when Coolant tem-
perature decreases
to 110°C.
(Option can change)
27 E-ECU failure FlashROM suffers
[ROM error] checksum error.
28 E-ECU failure Reading/Writing
[EEPROM error] fails.
EEPROM suffers
checksum error.
29 E-ECU failure E-ECU fails to com-
[Sub CPU failure] municate with sub
CPU.
30 E-ECU failure Map format is
[Mapping error] invalid.
31 E-ECU failure Sensor voltage is
[E-ECU tempera- 4.6 V or more, or
ture sensor failure] 1.0 V or less.
When detecting these failures, the E-ECU flashes the failure lamp to alert the operator to the occurrence of
failure conditions. The failure lamp will illuminate for 2 sec. when the E-ECU is power on. This allows
checking if the E-ECU is supplied with power normally. (The failure lamp is an essential means for checking
or diagnosing the E-ECU).
TNV Application Manual
Table 2-12 Diagnostic list
Failure detection
Operation when failure occurs
conditions
Engine runs normally.
Engine runs normally.(Option can change)
Engine runs normally.(Option can change)
Engine runs normally.
Engine runs normally.(Option can change)
Engine runs normally.(Option can change)
Engine runs normally.(Option can change)
Engine runs normally.
Engine stops.
Engine runs normally.
Engine runs normally.
Engine stops.
Engine runs normally.
CONTROL SYSTEM
Action/
condition for Category
recovery
Turn key off. Always
enable
Correct failure. Default to
enable
Correct failure. Default to
enable
Turn key off. Default to
enable
Turn key off. Default to
enable
Turn key off. Default to
enable
Turn key off. Default to
enable
Correct failure. Default to
enable
Turn key off. Always
enable
Turn key off. Always
enable
Turn key off. Always
enable
Turn key off. Always
enable
Correct failure. Always
enable
Number
of
flashes
2-4
2.5
3-1
3-2
3-3
3-4
3-5
3-6
4-1
4-1
4-1
4-1
4-1
2-59