Hyundai Yanmar TNV Series Manual page 76

No. Item
1 Coolant tempera- Sensor voltage is
ture sensor failure 4.8 V or more, or
0.2 V or less.
2 Accelerator sensor Sensor voltage is
failure 4.6 V or more, or
0.2 V or less.
3 Speed sensor Engine start signal
failure (E8) is on, but the
engine speed is
zero.
Engine speed
decreases by 480
min
ms.
4 Rack position Correlation
sensor failure between rack actu-
ator output and rack
position exceeds
threshold upper
limit by 0.32 sec. or
more.
Correlation
between rack actu-
ator output and rack
position exceeds
threshold lower limit
by 0.16 sec. or
more.
5 Rack actuator Rack actuator cur-
failure rent is too high.
Rack actuator cur-
rent is too low.
Engine accelerates
with minimum rack
actuator output.
Engine stalls while
rack position sensor
is failed.
6 Overspeed Idling engine speed
exceeds high idling
speed plus 600 min
TNV Application Manual
Table 2-12 Diagnostic list
Failure detection
Operation when failure occurs
conditions
Engine runs with a coolant temperature of
30°C.
[Without optional backup accelerator sensor]
Engine runs at 1500 min
change)
[With optional backup accelerator sensor]
Select backup accelerator sensor: No
limitation
Backup accelerator sensor failure: Engine
runs at 1500 min
[With optional backup speed sensor]
Backup speed sensor becomes active;
speed is limited to 1800 min
change)
Backup speed sensor failed: Engine stops.
[Without optional backup speed sensor]
-1 Engine stops.
or more in 40
Engine runs with limited output and speed.
(Rack position control is inactive and speed
control is active).
Engine stops.
Engine stops.
-1
.
-1
. (Option can
-1
.(Option can change)
-1
.(Option can
CONTROL SYSTEM
Action/
condition for Category
recovery
Correct failure. Always
enable
Correct failure. Default to
disable
Turn key off. Always
enable
Turn key off. Always
enable
Turn key off. Always
enable
Turn key off. Always
enable
Number
of
flashes
4
5
6
7
8
9
2-57