ELECTRICAL SYSTEM
DIAGNOSTIC CHART
Problem Possible Cause
No 12 Volt Power At Battery Battery switch turned off
Weak or dead battery
Battery cables disconnected from storage
Bad voltmeter or voltmeter connection
Battery Not Charging While
Engine Is Running
Loose / damaged serpentine belt
Faulty alternator - check with volt meter
Faulty volt meter
Battery Will Not Hold Charge Faulty / old battery
12 Volt Equipment Not Working Fuse blown - investigate why the
equipment was drawing too much current
or why it had a circuit short. Check fuses
in dash fuse box, underneath the dash,
and in the engine compartment
Weak or dead battery if all 12v
equipment fails to function
Corroded / loose wire connection
Internal equipment short / failure
8-6
Chapter 8
To Next Page
Loading...
