Faulty Indicator Lamp Operation; Undercharged Battery; Voltmeter - Suzuki Samurai 1986 Service Manual

A. Faulty Indicator Lamp Operation
Problem
Charge light does not light
with ignition ON and engine
off
Charge light does not go out
with engine running
(battery requires frequent re-
charging)
B. Undercharged Battery
This condition, as shown by slow cranking or
indicator clear with red dot, can be caused by
one or more of the following conditions even
though the indicator lamp may be operating
normally. The following procedures also apply
to cars with a voltmeter.
1) Insure that the undercharged condition has
not been caused by accessories left on for
extended period.
2) Check drive belt for proper tension.
3) If a battery defect is suspected, refer to
latter part of this section, p. 10-l 0 - p, 1 O-
11.
4) Inspect wiring for defects. Check all connec-
tions for tightness and cleanliness, including
slip connectors at alternator and bulkhead,
and battery cable connections at battery,
starter and ignition ground cable.
5) Connect voltmeter and ammeter as shown in
the diagram below.
Fig. 10-3
10-4
Possible cause
Fuse blown
Light burned out
Wiring connection loose
Drive belt loose or worn
Battery cables loose, corroded or worn
IC regulator or alternator faulty
Wiring faulty
a. Voltmeter
b. Ammeter
6) Current and voltage measurements
a. No-load check
NOTE:
Consideration should be taken that the voltage
will vary somewhat with regulator case tempe-
rature.
1. Generator
2. Ammeter
3. Volt meter
4. Battery
6. Load
6. Switch
Check fuse
Replace light
Tighten loose connections
Replace IC regulator
Adjust or replace drive belt
Repair or replace cables
Check charging system
Repair wiring
.
Set between alternator (B) terminal and
ground.
Set between alternator (B) terminal and
battery (+) terminal.
Run engine from idling up to 2,000 r/min
(rpm) and read meters.