Suzuki Samurai 1986, Service Manual

Page: 238 / 482

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
charging)
Possible cause
on
Fuse blown Check fuse
Light burned out
Replace light
Wiring connection loose Tighten loose connections
regulator faulty Replace IC regulator
Drive belt loose or worn
Adjust or replace drive belt
Battery cables loose, corroded or worn Repair or replace cables
IC regulator or alternator faulty Check charging system
Wiring faulty
.
Repair wiring
B. Undercharged Battery
a. Voltmeter
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 1
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.
Set between alternator (B) terminal and
ground.
b. Ammeter
Set between alternator terminal and
battery terminal.
6) Current and voltage measurements
a. No-load check
Run engine from idling up to 2,000
(rpm) and read meters.
NOTE:
Consideration should be taken that the voltage
will vary somewhat with regulator case tempe-
rature.
Fig.
10-4
1. Generator
2. Ammeter
3. Volt meter
4. Battery
6. Load
6. Switch