Toyota 4A-FE Repair Manual page 217

CH-6
20
CHARGING SYSTEM - On-Vehicle Inspection
CH0067
• If the voltmeter reading is greater than standard
voltage, replace the IC regulator.
• If the voltmeter reading is less than standard
voltage, check the alternator.
7. INSPECT CHARGING CIRCUIT WITH LOAD
(a) With the engine running at 2,000 rpm, turn on the
high beam headlights and place the heater blower
switch at "HI".
s--
0
(b) Check the reading on the ammeter.
CH0068
CH0069
Standard amperage: 30 A or more
If the ammeter reading is less than standard amperage,
repair the alternator.
(See
page CH- 7)
HINT: With the battery fully charged, the indication will
sometimes be less than standard amperage.