Nissan Note [29/60] Inspection of excessive alternator power generation

Nissan Note [29/60] Inspection of excessive alternator power generation
CHARGING SYSTEM
SC-29
C
D
E
F
G
H
I
J
L
M
A
B
SC
2. CURRENT INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the battery ground cable.
3. Attach current measurement probe for CONSULT-II to the harness for alternator terminal B.
(If the probe can not be attached properly, then connect the sub-
harness between alternator terminal B and the vehicle side har-
ness as shown in figure, and attach the probe to sub-harness.)
4. Connect battery ground cable.
5. Increase engine speed to 2,500 rpm.
6. Turn electrical load to ON. (Headlamp LO turns on, blower fan
motor maximum airflow amount, rear window defogger)
7. Check alternator terminal B current.
CAUTION:
Be careful of rotating parts because the engine is running.
Is the inspection result 30A or more?
YES >> GO TO dark current inspection. Refer to SC-30, "DARK CURRENT INSPECTION" . (Alternator is
normal. Do not replace.)
NO >> Replace alternator. (Alternator power generation error.)
INSPECTION OF EXCESSIVE ALTERNATOR POWER GENERATION
1. ALTERNATOR VOLTAGE INSPECTION
1. Increase engine speed to 2,500 rpm.
2. Check battery voltage.
Is the inspection result 16V or less?
YES >> GO TO 2.
NO >> Replace alternator. (Excessive alternator power genera-
tion.)
2. BATTERY VOLTAGE INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect alternator connector.
3. Check voltage between alternator connector terminal 3 and
ground.
Is the inspection result 12V or more?
YES >> Replace alternator. (Alternator power generation error)
NO >> GO TO 3.
3. FUSE CHECK
Check if fuse #36 (10A) is blown.
OK or N
OK >> Repair harness between fuse #36 (10A) and alternator harness connector terminal 3. (Alternator
is normal. Do not replace.)
NG >> Replace fuse. (Alternator is normal. Do not replace.)
MKIA0068E
MKIA0067E
3 - Ground : 12V or more
MKIB1918E

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