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Trouble
Shooting
Harness
Diagram
Trouble Inspection Diagnosis Action
Gauge Sticks
Gauge
Inoperative
A. Backclamp may
be too tight.
A.
1. Slightly loosen nuts
holding backclamp.
Check operation.
1.
1. If gauge works and is
not loose in panel, continue
using gauge.
2. If gauge continues to
stick, replace gauge.
1.
Switch the
instrument power
supply switch on and
off. As power is
supplied the pointer
should jump slightly.
Check wires to
check they were
installed on the
correct terminals and
power is actually
supplied to gauge.
2
If pointer jumps
(indicating power
supplied), check for
signal from engine. If
signal exists, replace
tachometer.
Is power applied to
gauge?
Trouble shooting continued next page.
Black
Green/Orang
e
Green/Orang
eGreen/Orange
Yellow
Ye
llow
Ye
llow
Blac
kBlack
Black
Gray
Gray
Gray
Gray
Heat shrink tubing
HN0412 rev A ecr 5609 8/05