JLG 1350SJP Service Manual User Manual
Page 187
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SECTION 3 - CHASSIS & TURNTABLE
3121142
– JLG Lift –
3-141
Does DST display ECT
voltage of 4.9 VDC or
greater?
· Key Off
· Disconnect ECT sensor from harness
· Key On, Engine Off
· System Mode = “Stopped”
· Sensor signal circuit shorted to ground,
check wire harness for ground short
· Faulty ECM
· Faulty ECT
Sensor
Yes
No
Does DST display an ECT
voltage less the limit
defined in calibration?
· Intermittent Problem
Yes
No
· Key On, Engine Running
· System Mode = “Running”
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