PTC NISSAN TIIDA 2011 Service Repair Manual

PG-16
< SERVICE INFORMATION >
POWER SUPPLY ROUTING CIRCUIT
Fuse
INFOID:0000000005928339
• If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
• Use fuse of specified rating. Never use fuse of more than specified
rating.
• Do not partially install fuse; always insert it into fuse holder prop- erly.
• Remove fuse for “ELECTRICAL PARTS (BAT)” if vehicle is not used for a long period of time.
Fusible LinkINFOID:0000000005928340
A melted fusible link can be detected either by visual inspection or by
feeling with finger tip. If its condition is questionable, use circuit
tester or test lamp.
CAUTION:
• If fusible link should melt, it is possible that critical circuit
(power supply or large current carrying circuit) is shorted. In
such a case, carefully check and eliminate cause of malfunc-
tion.
• Never wrap outside of fusible link with vinyl tape. Important:
Never let fusible link touch an y other wiring harness, vinyl or
rubber parts.
Circuit Breaker (Built Into BCM)INFOID:0000000005928341
For example, when current is 30A, t he circuit is broken within 8 to 20
seconds.
A circuit breaker is used for the following systems:
• Power windows
• Power sunroof
Circuit BreakerINFOID:0000000005928342
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 temper-
ature to rise. When the temperature reaches a specified level, the
electrical resistance will rise sharply to control the circuit current.
Reduced current flow will cause the element to cool. Resistance falls
accordingly and normal circuit current flow is allowed to resume.
CEL083
LKIA0830E
SBF284E
SEL109W
Revision: May 2010 2011 Versa