Suzuki 2000 Grand Vitara SQ416, Service Manual

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YH4
GRAND
VITARA
Ammeter between generator (B)
terminal and battery (+) terminal
Voltmeter between
generator (B) terminal
and ground.
1. Generator
2. Ammeter
3. Voltmeter 4. Battery
5. Load
6. Switch
[60 A type]
[70 A and 85 A types]
HEATSINK TEMPERATURE (
_
C)
REGULA
TED VOL
T
AGE (V)
Volt
Temperature
CHARGING SYSTEM 6H-9
UNDERCHARGED BATTERY
This condition, as evidenced by slow cranking or indicator clear
with red dot can be caused by one or more of the following condi-
tions even though indicator lamp may be operating normal.
Following procedure also applies to cars with voltmeter and amme-
ter.
1) Make sure that undercharged condition has not been caused by
accessories left on for extended period of time.
2) Check drive belt for proper tension.
3) If battery defect is suspected, refer to BATTERY section.
4) Inspect wiring for defects. Check all connections for tightness
and cleanliness, battery cable connections at battery, starting
motor and ignition ground cable.
5) Connect voltmeter and ammeter as shown in left figure.
Voltmeter
Set between generator B terminal and ground.
Ammeter
Set between generator B terminal and battery (+) terminal.
NOTE:
Use fully charged battery.
6) Measure current and voltage.
No-load Check
1) Run engine from idling up to 2,000 rpm and read meters.
NOTE:
Turn off switches of all accessories (wiper, heater etc.).
Standard current: 10 A maximum
Standard voltage: 14.4 – 15.0 V (at 20
_
C, 85
_
F) 60 A type
14.1 – 15.2 V (at 20
_
C, 68
_
F) 70 A and
85 A types
NOTE:
Consideration should be taken that voltage will differ some-
what with regulator case temperature as shown in left fig-
ure.