ELECTRICAL SYSTEM
10K-37
SECTION 10K. CIRCUIT BREAKERS
CIRCUIT BREAKER TEST
A circuit breaker (CB1) protects the electrical system
between the alternator and battery voltage circuit. The
circuit breaker is mounted near the fuse block. When
tripped, the circuit breaker opens, blocking the flow of
current from the alternator to the battery circuit.
The circuit breaker can be tested using the following
procedure.
1. Shut down the engine and remove the ignition
key. Allow the engine to cool completely.
2. Set the multimeter to 20 volts DC.
3. Connect black test lead to the battery negative
(- NEG) terminal.
4. Connect the red test lead to each of the circuit
breaker terminals in turn (Figure 10K-1).
The multimeter should indicate battery voltage at
both circuit breaker terminals. If not, replace the
circuit breaker.
Figure 10K-1. Circuit Breaker Test
Circuit Breaker
Terminals
10K
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