Mercury MerCruiser D2.8L D-Tronic Service Manual page 411

SERVICE MANUAL NUMBER 22
5. Connect jumper wire from terminal G (GND) to terminal SEND ("S").
6. Turn ignition switch to the "RUN" position. Gauge being tested must be at position B.
Typical
CRUISELOG (ENGINE HOUR METER)
1. Remove cables from battery and fully charge battery.
2. Remove wires from back of gauge.
3. Connect positive (+) jumper lead from battery to gauge terminal + (12 V).
4. Connect negative (–) jumper lead from battery to gauge terminal "GND" (ground).
5. Observe gauge run indicator on face of gauge. If indicator is turning, the gauge is
operable. If indicator is not turning, replace gauge
90-860074--1 FEBRUARY 2002
a - Jumper Wire
a - Needle at Position B
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INSTRUMENTATION
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