9 - 17
Section C
Electrics
9803/6400
Section C
9 - 17
Issue 1
Fault Finding
Fault Diagnosis (continued)
Engine Trouble, Problem No 11 (continued)
Troubleshoot Cause Remedy
Engine system Inspect
Abnormality engine
system.
Breakage of LR
wiring between stop Repair
motor connector LR wiring.
and CND or between
CND and fuse
Replace
Stop motor defect stop motor.
Shut down relay Replace
defect shut down
relay 1.
Shut down relay 2 Replace
Defect or breakage shut down
of L wiring between relay 2 or
shut down 1 and 2 repair L
wiring.
Is fuel cut lever on stop side
YES
YES
YES
NO
NO
NO
NO
Remove the stop motor connector
and connect female side (cab side)
to service connector (6 pin).
Measure voltage between LR and
ground, connecting LR to + and
ground to -.
Is it within the range of 20~30V.
Key switch ON
YES
Measure voltage between shut
down relay 1 connector L and
ground, connecting L to + and
ground to -.
Is the following true?
Emergency stop button ON: 0V
Emergency stop button OFF:
20~30V
Remove the stop motor
connector and attach service
connector to female side.
Confirm continuity between L and
LW. Is the following true?
Key switch ON: Continuity
Key switch OFF: °°
To judge if relay is defective
or not, interchanging the
relay with one in the
centralized relay is another
method.
To Next Page
Loading...
Need help?
General
