Audio Warning System - MerCruiser 305 CID (5.0L) Service Manual

INSTRUMENTATION
Start/Stop Switch
TESTING
Disconnect battery leads at battery before testing.
1. Disconnect battery leads.
2. Check for continuity between the terminals on the start switch with a continuity meter.
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 depressed) state, replace panel button.

Audio Warning System

For repair procedures on fuel injected engines, refer to SECTION 5.
Buzzer
TESTING
1. Turn key to RUN position (engine off).
2. Buzzer should sound briefly.
3. If horn does not sound:
a. Disconnect TAN/BLU wire at buzzer and touch it to a known good ground (–).
b. If horn sounds, problem is in TAN/BLUE wire back to engine or switches on engine.
Index
Page 4D-14
WARNING
NOTICE
SERVICE MANUAL NUMBER 24
72763
90-861327--1 OCTOBER 1999