nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Fuses and Circuit Breakers|Fuse > < Air Bag(s) Arming and Disarming|Service and Repair
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Circuit Breaker: Testing and Inspection

Circuit Breaker (Built Into BCM)

For example, when current is 30 A, the circuit is broken within 8 to 20 seconds.
A circuit breaker is used for the following systems:

-

Power seat

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Power windows

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Power sunroof

Circuit Breaker (PTC)

The PTC thermistor generates heat in response to current flow. The temperature (and resistance) of the thermistor element varies with current flow.
Excessive current flow will cause the element's temperature to rise. When the temperature reaches a specified level, the electrical resistance will rise
sharply to reduce the circuit current. This reduced current flow will cause the element to cool lowering the resistance accordingly. Once resistance falls
to a specified level normal circuit current flow is allowed to resume.

Fuses and Circuit Breakers|Fuse > < Air Bag(s) Arming and Disarming|Service and Repair