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CONTROL SYSTEM
TNV Application Manual
2-59
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).
19
Sensor 5V failure
Monitoring voltage
is approx. 0 V.
Engine runs normally.
Turn key off.
Always
enable
2-4
Monitoring voltage
is 4.5 V or less.
Monitoring voltage
is 5.5 V or more.
20
E-ECU overheat
alarm
E-ECU temperature
exceeds 105°C.
Alarm is canceled
when E-ECU tem-
perature decreases
to 100°C.
(Option can change)
Engine runs normally.(Option can change)
Correct failure. Default to
enable
2.5
21
Oil pressure low
Oil pressure switch
fails to turn off when
engine is running.
Engine runs normally.(Option can change)
Correct failure. Default to
enable
3-1
22
Charge failure
Charge switch fails
to turn off when
engine is running.
Engine runs normally.
Turn key off.
Default to
enable
3-2
23
Coolant tempera-
ture abnormal
Coolant tempera-
ture switch turns on.
Engine runs normally.(Option can change)
Turn key off.
Default to
enable
3-3
24
Air cleaner block-
age alarm
Air cleaner switch
turns on.
Engine runs normally.(Option can change)
Turn key off.
Default to
enable
3-4
25
Oily water separa-
tor alarm
Oily water separa-
tor switch turns on.
Engine runs normally.(Option can change)
Turn key off.
Default to
enable
3-5
26
Coolant tempera-
ture high alarm
Coolant tempera-
ture is 115°C or
higher.
Alarm is canceled
when Coolant tem-
perature decreases
to 110°C.
(Option can change)
Engine runs normally.
Correct failure. Default to
enable
3-6
27
E-ECU failure
[ROM error]
FlashROM suffers
checksum error.
Engine stops.
Turn key off.
Always
enable
4-1
28
E-ECU failure
[EEPROM error]
Reading/Writing
fails.
Engine runs normally.
Turn key off.
Always
enable
4-1
EEPROM suffers
checksum error.
29
E-ECU failure
[Sub CPU failure]
E-ECU fails to com-
municate with sub
CPU.
Engine runs normally.
Turn key off.
Always
enable
4-1
30
E-ECU failure
[Mapping error]
Map format is
invalid.
Engine stops.
Turn key off.
Always
enable
4-1
31
E-ECU failure
[E-ECU tempera-
ture sensor failure]
Sensor voltage is
4.6 V or more, or
1.0 V or less.
Engine runs normally.
Correct failure.
Always
enable
4-1
Table 2-12 Diagnostic list
No.
Item
Failure detection
conditions
Operation when failure occurs
Action/
condition for
recovery
Category
Number
of
flashes
00_Electronic_Control_System.book 59 ページ 2006年5月29日 月曜日 午後2時12分
Summary of Contents for Yanmar 3TNV82A-B
Page 95: ...CONTROL SYSTEM 2 76 TNV Application Manual 00_Electronic_Control_System book 76...
Page 96: ...Appendix Standard harness 1 00_ _E fm 1...
Page 97: ...Appendix Standard harness 2 00_ _E fm 2...
Page 98: ...TNV Series service tool Operation Manual...
Page 132: ...32 7 Main Menu Figure 7 15 Data Logging Data Monitor Screen...
Page 145: ...7 Main Menu 45 Figure 7 27 System Installation Configuration Screen...