charging LEXUS GS400 2000 Service Owner's Manual

CH047±01
B03131
Ohmmeter
Continuity
B03132
Ohmmeter
No Continuity
CH1023
B01948
Continuity
Ohmmeter
B01949
Ohmmeter No Continuity
± CHARGING (2JZ±GE)GENERATOR
CH±9
1611 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. INSPECT ROTOR
(a) Check rotor for open circuit.
Using an ohmmeter, check that there is continuity be-
tween the slip rings.
Standard resistance: 2.2 ± 2.4 W at 20°C (68°F)
If there is no continuity, replace the rotor.
(b) Check the rotor for ground.
Using an ohmmeter, check that there is no continuity be-
tween the slip ring and rotor.
If there is continuity, replace the rotor.
(c) Check that the slip rings are not rough or scored.
If rough or scored, replace the rotor.
(d) Using vernier calipers, measure the slip ring diameter.
Standard diameter: 14.2 ± 14.4 mm (0.559 ± 0.567 in.)
Minimum diameter: 12.8 mm (0.504 in.)
If the diameter is less than minimum, replace the rotor.
2. INSPECT STATOR (DRIVE END FRAME)
(a) Check the stator for open circuit.
Using an ohmmeter, check that there is continuity be-
tween the coil leads.
If there is no continuity, replace the drive end frame assembly.
(b) Check the stator for ground.
Using an ohmmeter, check that there is no continuity be-
tween the coil lead and drive end frame.
If there is continuity, replace the drive end frame assembly.

P13535
Length
B01954
Ohmmeter
Positive (+)
Terminal
Rectifier
Terminal
B01933
Ohmmeter
Negative (±) Terminal
CH±10
± CHARGING (2JZ±GE)GENERATOR
1612 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
3. INSPECT BRUSHES
Using vernier calipers, measure the exposed brush length.
Standard exposed length:
9.5 ± 11.5 mm (0.374 ± 0.453 in.)
Minimum exposed length: 1.5 mm (0.059 in.)
If the exposed length is less than minimum, replace the brush
holder assembly.
4. INSPECT RECTIFIERS (RECTIFIER HOLDER)
(a) Check the positive (+) rectifier.
(1) Using an ohmmeter, connect one tester prob to the
positive (+) terminal and the other to each rectifier
terminal.
(2) Reverse the polarity of the tester probes and repeat
step (a).
(3) Check that one shows continuity and the other
shows no continuity.
If continuity is not as specified, replace the rectifier holder.
(b) Check the negative (±) rectifier.
(1) Using an ohmmeter, connect one tester probe to
each negative (±) terminal and the other to each
rectifier terminal.
(2) Reverse the polarity of the tester probes and repeat
step (a).
(3) Check that one shows continuity and the other
shows no continuity.
If continuity is not as specified, replace the rectifier holder.
5. INSPECT BEARING
Check the bearing is not rough or worn.
If necessary, replace the bearing. (See page CH±11)

PP0SN±01
PP±100
± PREPARATIONAIR CONDITIONING
152 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
AIR CONDITIONING
SST (Special Service Tools)
07110±58060Air Conditioner Service Tool Set
(07117±58060)Refrigerant Drain Service Valve
(07117±58070)T±Joint
(07117±58080)Quick Disconnect AdapterHigh pressure side
(07117±58090)Quick Disconnect AdapterLow pressure side
(07117±88060)Refrigerant Charging HoseHigh pressure side
(Color: Red)
(07117±88070)Refrigerant Charging HoseLow pressure side
(Color: Blue)
(07117±88080)Refrigerant Charging HoseUtility
(Color: Green)
07110±61050Wrench SetExpansion valve
(07111±21020)Holder
(07111±32020)Hexagon Wrench5 mm (0.20 in.)
07112±66040Magnetic Clutch Remover

PP0TY±04
± PREPARATIONCHARGING (2JZ±GE)
PP±27
79 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
CHARGING (2JZ±GE)
SST (Special Service Tools)
09285±76010Injection Pump Camshaft Bearing
Cone ReplacerRotor rear bearing cover
09820±00021Alternator Rear Bearing Puller
09820±00030Alternator Rear Bearing ReplacerRotor rear bearing
09820±63010Alternator Pulley Set Nut Wrench
Set
09950±40011Puller B Set
(09951±04020)Hanger 200Rectifier end frame
(09952±04010)Slide ArmRectifier end frame
(09953±04030)Center Bolt 200Rectifier end frame
(09954±04010)Arm 25Rectifier end frame
(09955±04041)Claw No.4Rectifier end frame
09950±60010Replacer Set
(09951±00500)Replacer 50Rotor front bearing

PP0TZ±01
PP±28
± PREPARATIONCHARGING (2JZ±GE)
80 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
RECOMMENDED TOOLS
09082±00040TOYOTA Electrical Tester.

PP0U0±01
± PREPARATIONCHARGING (2JZ±GE)
PP±29
81 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
EQUIPMENT
Ammeter (A)
Battery specific gravity gaugeExcept maintenance±free battery
Torque wrench
Vernier calipersRotor (Slip ring)

SS0E6±02
±
SS±21
177 Author: Date:
CHARGING (2JZ±GE)
SERVICE DATA
BatteryVoltage (Maintenance±free battery) at 20°C (68°F)
Specific gravity (Except maintenance±free battery)
at 20°C (68°F)12.5 ± 12.9 V
1.25 ± 1.29
GeneratorRated output
Rotor coil resistance at 20°C (68°C)
Slip ring diameter STD
Minimum
Brush exposed length STD
Minimum12 V 80 A
2.2 ± 2.4 W
14.2 ± 14.4 mm (0.559 ± 0.567 in.)
12.8 mm (0.504 in.)
9.5 ±11.5 mm (0.374 ±0.453 in.)
1.5 mm (0.059 in.)
Voltage regulatorRegulating voltage13.2 ± 14.8 V

AB0089
Secondary Lock
Primary LockLockLock
Primary Lock Incomplete
(Secondary Lock Prevented)Primary Lock Complete
(Secondary Lock Permitted)Twin±Lock Completed
Z14034
Fig.1
Fig.2Power Source
Safing
Sensor
Squibs
Airbag Sensor
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS±7
2238 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(4) Connector Twin±Lock Mechanism
With this mechanism connectors (male and female
connectors) are locked by 2 locking devices to in-
crease the connection reliability. If the primary lock
is incomplete, ribs interfere and prevent the sec-
ondary lock.
(b) When the vehicle is involved in a frontal collision in the
hatched area (Fig. 1) and the shock is larger than the pre-
determined level, the SRS is activated automatically. A
safing sensor is designed to go on at a smaller decelera-
tion rate than the airbag sensor. As illustrated in Fig. 2,
ignition is caused when current flows to the squib, which
happens when a safing sensor and the airbag sensor go
on simultaneously. When a deceleration force acts on the
sensors, 2 squibs in the driver airbag and front passenger
airbag ignite and generate gas. The gas discharging into
the driver airbag and front passenger airbag rapidly in-
creases the pressure inside the bags, breaking open the
steering wheel pad and instrument panel door.
Bag inflation then ends, and the bags deflate as the gas
is discharged through discharge holes at the bag's rear or
side.