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Harness
Dia gram
HN0397 revA ecr 4452 03/2004
Yellow/Red
Green/Orange
Yellow
Black
Gray
HN0418 rev A ecr 5609 8/05
Trouble
Trouble
Gauge Sticks
Shooting
Gauge
Inoperative
Trouble shooting continued next page.
Heat shrink tubing
Yellow
Inspection
A. Backclamp may
be too tight.
A.
Is power applied to
gauge?
Yellow/Red
Green/Orange
Green/Orange
Yellow
Black
Black
Gray
Gray
Yellow
Yellow
Diagnosis
1. Slightly loosen nuts
holding backclamp.
Check operation.
1.
Switch the
instrument power
supply switch on and
off. As power is
supplied the pointer
should jump slightly.
Sync Port
Lights
Sync Stbd
Ground
+14V
Action
1. If gauge works and is
not loose in panel,
continue using gauge.
2. If gauge continues to
stick, replace gauge.
1.
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.
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