Mercury 305 CID, Service Manual, Page: 372 / 967

INSTRUMENTATION - 4D-11 90-823225--1 1096
IMPORTANT: The BLK/YEL lead is not used. It
should be well insulated and taped to harness.
1.
Disconnect switch leads.
2.
Connect an ohmmeter to switch leads.
3.
Switch should have continuity with toggle in the
RUN position and no continuity with toggle in the
OFF position.
Start/Stop Switch
TESTING
! WARNING
Disconnect battery leads at battery before test-
ing.
1.
Disconnect battery leads.
2.
Check for continuity between the terminals on the
start switch with a continuity meter.
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3.
No continuity should exist.
4.
Depress switch button and continuity should
exist.
5.
Check stop switch in the same manner.
6.
If continuity exists when in the OPEN (not de-
pressed) state, replace panel button.
Audio Warning System
NOTICE
For repair procedures on Fuel Injection
Engines, refer to Section 5C.
Buzzer
! WARNING
The following test involves the use of electricity.
Failure to follow appropriate procedures can
cause burns or shock which can result in severe
personal injury or death.
TESTING
1.
Turn key to RUN position (engine off).
2.
Wait 7 to 14 seconds for horn to sound.
3.
If horn does not sound:
a. Connect jumper wires as shown.
b. If horn does not sound, replace it.
4.
If horn worked in Step 3:
a. Connect jumper wires as shown.
b. Repeat Step 2.