Nortrac XT20 - Page 48

Operation Description
42
2.16.2.4 Instrument Faults and Troubleshooting
Table 2-14 Instrument Faults and Troubleshooting
Sequence
No.
Fault Fault Reasons Troubleshooting
1
The water
temperature
gauge always
indicates a low
temperature.
(1) Circuit opened and contact at
plug-in is poor.
(2) Water temperature sensor damage.
(3) Water temperature meter ineffective.
(1)
Check & repair the circuits.
Remove dirt at
plug-in.
(2) Replace water temperature
sensor.
(3) Replace water temperature
meter.
2
The water
temperature
gauge always
indicates a high
temperature.
(1) Water temperature sensor short
circuit or damage.
(2) Short circuit.
(3) Water temperature meter ineffective.
(4) Replace water temperature
sensor.
(5) Check and repair or remove
shorted circuit faults.
(6) Replace water temperature
meter.
3
Oil gauge
indication
abnormal.
(1) Circuit opened or shorted
(2) Oil volume sensor circuit broken,
short or not in good contact
(3) Oil pressure meter ineffective.
(1) Check and repair, then
troubleshoot.
(2) Repair or replace sensor.
(3) Replace oil pressure meter.
2.16.2.5 Light Faults and Troubleshooting
Table 2-15 Light Faults and Troubleshooting
Sequence
No.
Fault Fault Reasons Troubleshooting
1
Head lamp
has no high
beam or
dimmed
light.
(1) Circuit broken, short circuit fuse
blowout.
(2) Bad contact or damage to the
dimmer switch
(3) Filament broken.
(1) Check and repair, then connect.
(2) Check and repair. Replace if
necessary.
(3) Replace bulb.
2
Rear light
not lit.
(1) Circuit open.
(2) Poor contact or damage to the rear
light switch.
(1) Check and repair, then connect.
(2) Check and repair. Replace if
necessary.