Page 1041 of 2543

2. CHECK BATTERY TERMINALS AND FUSES
(a) Check that the battery terminals are not loose or corroded.
If the terminals are corroded, clean the terminals.
(b) Check the fuses for continuity.
H±fuse:
ALT 120A
M±fuse:
AM1 50A for USA
AM1 60A for CANADA
Fuse:
AM2 30A
ALT±S 7.5A
GAUGE 10A
IGN 7.5A
3. INSPECT DRIVE BELTHINT: A belt tensioner is used, so
checking the belt tension is not necessary.
(a) Visually check the drive belt for excessive wear, frayed cords,
etc.
If necessary, replace the drive belt.
HINT:
wCracks on the rib side of a drive belt are considered
acceptable. If the drive belt has chunks missing from the
ribs, it should be replaced.
wThe drive belt tension can be released by turning the
belt tensioner clockwise.
(b) Check the belt tensioner operation.
wCheck that the belt tensioner moves downward when
the drive belt is pressed down at the points indicated in
the illustration with approx. 98 N (10 kgf. 22.0 lbf) of
force.
wCheck the alignment of the belt tensioner pulley to make
sure the drive belt will not slip off the pulley.
If necessary, replace the belt tensioner. CH±4
± CHARGING SYSTEMON±VEHICLE INSPECTION
Page 1042 of 2543

wCheck that the arrow mark on the belt tensioner falls
within area A of the scale.
If it is outside area A, replace the drive belt.
HINT:
wWhen a new belt is installed, it should lie within area B.
If not, the drive belt is not correct.
wAfter installing a drive belt, check that it fits properly in
the ribbed grooves.
wCheck by hand to confirm that the belt has not slipped
out of the groove on the bottom of the pulley.
4. REMOVE ENGINE UNDER COVER
5. VISUALLY CHECK GENERATOR WIRING AND LISTEN
FOR ABNORMAL NOISES
(a) Check that the wiring is in good condition.
(b) Check that there is no abnormal noise from the generator
while the engine is running.
6. CHECK CHARGE WARNING LIGHT CIRCUIT
(a) Warm up the engine and then turn it off.
(b) Turn off all accessories.
(c) Turn the ignition switch ºONº. Check that the charge warning
light is lit.
(d) Start the engine. Check that the light goes off. If the light does
not go off as specified, troubleshoot the charge light circuit.
7. INSPECT CHARGING CIRCUIT WITHOUT LOAD
HINT: If a battery/generator tester is available, connect the
tester to the charging circuit as per manufacturer's instruc-
tions.
(a) If a tester is not available, connect a voltmeter and ammeter
to the charging circuit as follows:
wDisconnect the wire from terminal B of the generator,
and connect it to the negative (±) probe of the ammeter.
± CHARGING SYSTEMON±VEHICLE INSPECTIONCH±5
Page 1043 of 2543

wConnect the positive (+) probe of the ammeter to
terminal B of the generator.
wConnect the positive (+) probe of the voltmeter to
terminal B of the generator.
wGround the negative (±) probe of the voltmeter.
(b) Check the charging circuit as follows:
With the engine running from idling to 2,000 rpm, check the
reading on the ammeter and voltmeter:
Standard amperage:
10 A or less
Standard voltage:
At 25°C (77°F)
13.6±14.8 V
At 115°C (239°F)
S13.2±14.0 V
If the voltmeter reading is more than standard voltage, re-
place the voltage regulator.
If the voltmeter reading is less than standard voltage, check
the voltage regulator and generator as follows:
wWith terminal F grounded, start the engine and check
the voltmeter reading of terminal B.
wIf the voltmeter reading is more than standard voltage,
replace the voltage regulator.
wIf the voltmeter reading is less than standard voltage,
check the generator.
8. 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 ºHIº.
(b) Check the reading on the ammeter.
Standard amperage:
30 A or more
If the ammeter reading is less than the standard amperage,
repair the generator.
HINT: If the battery is fully charged, the indication will some-
times be less than standard amperage.
9. REINSTALL ENGINE UNDER COVER CH±6
± CHARGING SYSTEMON±VEHICLE INSPECTION
Page 1044 of 2543
GENERATOR
COMPONENTS FOR REMOVAL AND
INSTALLATION
± CHARGING SYSTEMGENERATORCH±7
Page 1045 of 2543
GENERATOR REMOVAL
Installation is in the reverse order of removal.
1. REMOVE ENGINE UNDER COVER
2. 2JZ±GTE:
REMOVE NO.2 AIR TUBE FOR CAC
3. REMOVE NO.2 FAN SHROUD
4. 2JZ±GTE M/T:
REMOVE DRIVE BELT TENSIONER DAMPER
Torque: 20 NVm (200 kgfVcm, 14 ftVlbf)
5. REMOVE DRIVE BELT
6. REMOVE GENERATOR
(a) Disconnect the generator connector.
(b) Re mo ve th e rubber cap and nut, and disconnect the
generator wire.
(c) Disconnect the generator wire clamp from the wire clip on the
generator.
(d) A/T:
Remove the bolt and pipe clamp, and disconnect the 2 oil
cooler pipes from the generator.
(e) Remove the bolt, nut, pipe bracket and generator.
Torque: 37 NVm (380 kgfVcm, 27 ftVlbf)
CH±8± CHARGING SYSTEMGENERATOR
Page 1046 of 2543
COMPONENTS FOR DISASSEMBLY AND
ASSEMBLY
± CHARGING SYSTEMGENERATORCH±9
Page 1047 of 2543
GENERATOR DISASSEMBLY
1. REMOVE REAR END COVER
(a) Remove the nut and terminal insulator.
(b) Remove the bolt, 3 nuts, plate terminal and end cover.
2. REMOVE BRUSH HOLDER AND VOLTAGE REGULATOR
(a) Remove the brush holder cover from the brush holder.
(b) Remove the 5 screws, brush holder and voltage regulator.
(c) Remove the seal plate from the rectifier end frame. CH±10
± CHARGING SYSTEMGENERATOR
Page 1048 of 2543
3. REMOVE WIRE CLIP
Remove the nut and wire clip.
4. REMOVE RECTIFIER HOLDER
(a) Remove the 4 screws and rectifier holder.
(b) Remove the 4 rubber insulators.
5. REMOVE PULLEY
(a) Hold SST (A) with a torque wrench, and tighten SST (B)
clockwise to the specified torque.
SST 09820±63010
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
(b) Check that SST (A) is secured to the rotor shaft.
(c) Mount SST (C) in a vise.
(D) Insert SST (B) into SST (C), and attach the pulley nut to SST
(C).
± CHARGING SYSTEMGENERATORCH±11