Toyota 4A-FE Repair Manual page 214

CH-2
CHARGING SYSTEM - Precautions, Troubleshooting, Charging Circuit
Problem
Discharge warning
light does not light
with ignition ON
and engine off
Discharge warning
light does not go out
with engine running
(battery requires fre-
quent recharging)
FL
AM1
40A (AE,
AT180)
60A
(AT171)
1
PRECAUTIONS
1. Check that the battery cables are connected to the
correct terminals.
2. Disconnect the battery cables when the battery is
given
a
quick charge.
3. Do not perform tests with a high voltage insulation
resistance tester.
4.
Never disconnect the battery while the engine is run-
ning.
TROUBLESHOOTING
Possible cause Remedy
Page
Fuse blown Check "CHARGE" and
"IGN" fuses
Light burned out
Replace light
Wiring connection lose
Tighten loose connections
IC regulator faulty
I
Replace IC regulator
Drive belt loose or worn
!
Adjust or replace drive belt
Battery cables loose, corroded or worn Repair or replace cables
Fuse blown Check "CHARGE" or
"ENGINE" fuse
Fusible link blown Replace fusible link
IC regulator or alternator faulty
Check charging system
Wiring faulty
I
Repair wiring
CHARGING CIRCUIT
Ign ition Switch
FL
AM2
30A
Charge
Waring
Light
Fuse
lGN
10A (AEl
7.5A (An
Fuse
CHARGE
7.5A
,---s-
CH-7
CH - 3
I
CH-2
I
Alternator
CH07851