Yanmar 3TNV82A Troubleshooting Manual page 214

FAILURE DIAGNOSIS
No.
27
28
29
30
31
32
33
34
35
36
37
38
39
1-212
Intermittent fluctuation
Wire breakage or short-
of cooling-water
circuit in cooling-water
temperature sensor
temperature sensor
signal
Wire breakage or short-
circuit in harness, or
connector contact
failure
Intermittent fluctuation
Wire breakage or short-
of atmospheric-
circuit in atmospheric-
pressure sensor
pressure sensor
system
Wire breakage or short-
circuit in harness, or
connector contact
failure
Intermittent on/off of
Working machine
contact input signal
controller failure
from working machine
Wire breakage or short-
circuit in harness, or
connector contact
failure
Communication circuit
CAN communication failure in controller for
system failure working machine, Eco-
Governor, etc.
Wire breakage or short-
circuit in harness, or
connector contact
failure
Controller system Contact failure of
failure controller connector
Temporary failure in
controller input/output
circuit
Program or map data
failure
Control system
Unexpected strong
affected by conductive
noise or surge
noise
Control system
affected by radioactive
noise
Check method
Check error occurrence, tool Cooling-water temperature
data, and conduction with sensor system error: P0117/4,
tester. P0118/3, P0119/2
Check error occurrence, tool Cooling-water temperature
data, and conduction with sensor system error: P0117/4,
tester. P0118/3, P0119/2
Check error occurrence, tool Atmospheric-pressure sensor
data, and conduction with system error: P2228/4,
tester. P2229/3, P2230/2
Check error occurrence, tool Atmospheric-pressure sensor
data, and conduction with system error: P2228/4,
tester. P2229/3, P2230/2
Check presence of failure in
working machine controller.
Check tool data and
conduction with tester.
Check error occurrence, tool
data, and communication CAN communication error:
status with measuring U0001/12
instrument.
Check error occurrence, tool
CAN communication error:
data, and conduction with
U0001/12
tester.
Check error occurrence, tool
data, harness shaking, and
conduction with tester.
Check occurrence of error.
Check program and map data.
Check presence of conductive
noise.
Check presence of radioactive
noise.
TNV DI Service Manual
Factor Analysis
Relevant DTC Remarks