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CH-1
CHARGING (1GR-FE) - CHARGING SYSTEM
CHARGING SYSTEM CH0N5-01
ON-VEHICLE INSPECTION
CAUTION:
S Check that the battery cables are connected to the
correct terminals.
S Disconnect the battery cables when the battery is giv-
en a quick charge.
S Do not perform tests with a high voltage insulation re-
sistance tester.
S Never disconnect the battery while the engine is run-
ning.
1. CHECK BATTERY ELECTROLYTE LEVEL
(a) Check the electrolyte quantity of each cell (Maintenance-
Free Battery).
If under the lower level, replace the battery (or add distilled wa-
ter if possible) and check the charging system.
(b) Check the electrolyte quantity of each cell (Except Main-
tenance-Free Battery).
If under the lower level, add distilled water.
2. CHECK BATTERY SPECIFIC GRAVITY
(Except Maintenance-Free Battery)
(a) Check the specific gravity of each cell.
Standard specific gravity: 1.25 to 1.29 at 20_C (68_F)
HINT:
If the specific gravity is less than specification, charge the bat-
tery.
A01259
3. CHECK BATTERY VOLTAGE
(a) After having driven the vehicle and in the case that 20
minutes have not passed after having stopped the en-
gine, turn the ignition switch ON and turn on the electrical
system (headlight, blower motor, rear defogger etc.) for
60 seconds to remove the surface charge.
(b) Turn the ignition switch OFF and turn off the electrical sys-
tems.
A01260 (c) Measure the battery voltage between the negative (-)
and positive (+) terminals of the battery.
Standard voltage: 12.5 to 12.9 V at 20_C (68_F)
HINT:
If the voltage is less than specification, charge the battery.
CH-2
CHARGING (1GR-FE) - CHARGING SYSTEM
(d) Check the indicator as shown in the illustration.
HINT:
S Blue: OK
S White: Charging Necessary
S Red: Insufficient Water
4. CHECK BATTERY TERMINALS, FUSIBLE LINK AND
FUSES
(a) Check that the battery terminals are not loose or cor-
Z11580 roded.
(b) Check the fusible link, H-fuses and fuses for continuity.
5. INSPECT DRIVE BELT
(a) Visually check the belt for excessive wear, frayed cords
etc.
HINT:
S If any defect has been found, replace the drive belt.
S Cracks on the rib side of a belt are considered acceptable.
If the belt has chunks missing from the ribs, it should be
replaced.
B00543
(b) Check that it fits properly in the ribbed grooves.
HINT:
Check with your hand to confirm that the belt has not slipped out
of the groove on the bottom of the pulley.
6. VISUALLY CHECK GENERATOR WIRING
(a) Check that the wiring is in good condition.
7. LISTEN FOR ABNORMAL NOISES FROM GENERA-
TOR
B00540 (a) Check that there is no abnormal noise from the generator
while the engine is running.
8. INSPECT CHARGE WARNING LIGHT CIRCUIT
(a) Turn the ignition switch ON. Check that the charge warn-
ing light comes on.
(b) Start the engine. Check that the light goes off.
HINT:
If the light does not operate as specified, troubleshoot the
charge warning light circuit.
9. INSPECT CHARGING CIRCUIT WITHOUT LOAD
(a) If a battery/generator tester is available, connect the tes-
ter to the charging circuit as per manufacturer's instruc-
tions.
CH-3
CHARGING (1GR-FE) - CHARGING SYSTEM
Ammeter (b) If a tester is not available, connect a voltmeter to the
Disconnect Wire charging circuit as follows.
from Terminal B (1) Disconnect to the wire from terminal B of the gener-
ator and connect it to the negative (-) lead of the
Battery ammeter.
(2) Connect the positive (+) lead of the ammeter to ter-
B
minal B of the generator.
Generator
Voltmeter
(3) Connect the positive (+) lead of the voltmeter to ter-
Z10324 minal B of the generator.
(4) Ground the negative (-) lead of the voltmeter.
(c) Check the charging circuit.
(1) With the engine running from idle to 2,000 rpm,
check the reading on the ammeter and voltmeter.
Standard amperage: 10 A or less
Standard voltage: 13.2 to 14.8 V
HINT:
S If the voltmeter reading is more than standard voltage, re-
place the voltage regulator.
S If the voltmeter reading is less than the standard voltage,
check the voltage regulator and generator as follows:
10. 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".
(b) Check the reading on the ammeter.
Standard amperage: 30 A or more
HINT:
S If the ammeter reading is less than standard amperage,
repair the generator.
S If the battery is fully charged, the indication will sometimes
be less than standard amperage.
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