B00540
A88419
Disconnect Wire
from Terminal B
Generator Voltmeter
BatteryAmmeter 19-18
- STARTING & CHARGINGCHARGING SYSTEM (3MZ-FE)
2350 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(b) Check that the belt fits properly in the ribbed grooves.
Confirm that the belt has not slipped out of the groove on the
bottom of the pulley by hand.
5. INSPECT GENERATOR WIRING
(a) Visually check the generator wiring.
(1) Check that the wiring is in good condition.
6. INSPECT ABNORMAL NOISES
(a) Listen to abnormal noises from generator.
(1) Check that no abnormal noise is heard from the generator while the engine is running.
7. INSPECT CHARGE WARNING LIGHT CIRCUIT
(a) Turn the ignition switch ON. Check that the charge warning light comes on.
(b) Start the engine, then check that the light goes off.
If the light does not operate as specified, troubleshoot the charge warning light circuit.
8. INSPECT CHARGING CIRCUIT WITHOUT LOAD
(a) If a tester is not available, connect a voltmeter to the
charging circuit as follows.
(1) Disconnect the wire from terminal B of the genera-
tor, then connect it to the negative (-) lead of the
ammeter.
(2) Connect the positive (+) lead of the ammeter to ter-
minal B of the generator.
(3) Connect the positive (+) lead of the voltmeter to ter-
minal B of the generator.
(4) Ground the negative (-) lead of the voltmeter.
(b) Check the charging circuit.
(1) Keep the engine speed at 2,000 rpm, then check
the reading on the ammeter and voltmeter.
Standard amperage: 10 A or less
Standard voltage: 13.2 to 14.8 V
9. INSPECT CHARGING CIRCUIT WITH LOAD
(a) With the engine running at 2,000 rpm, turn the high beam headlights ON and turn the heater blower
switch to the ºHIº position.
(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.
If the battery is fully charged, the indication will sometimes be less than the standard amperage.
BATTERY MAINTENANCE FOR IN±STOCK VEHICLES & PRE±DELIVERY ± PG009-02 September 12, 2002
Page 2 of 4
TOOLS & EQUIPMENTMANUFACTURERPART NUMBER
Fast Battery Charger**AssociatedASE6003
Fast Battery Charger**ChristieCAPPDQ
** These tools can be ordered through the Lexus Approved Dealer Equipment program by calling
1±800±368±6787.
NOTE:
The ªFast Battery Chargersº listed above have been tested and approved by Lexus.
These state±of±the±art ªsmartº chargers were designed to charge batteries at an
accelerated rate, without the possibility of damage. Using non±microprocessor
controlled battery chargers for fast charging purposes can damage the battery.
All vehicles are to be inspected according to the procedures listed below using the
MICROPRO 815 battery tester no more than 48 hours prior to customer vehicle delivery.
PRIOR TO TESTING:
If necessary, remove battery surface charge by turning on high beam headlights for 60
seconds, then let battery voltage recover for one minute.
1. Connect test clamps to battery.
(Display will show four zeros
indicating a good connection).
2. For cold battery (<32F) or after
charge test, press TEST MODE key
until appropriate test is selected.
3. Input battery stock number.
NOTE:
Stock number must be used for
warranty cases because you cannot
read the warranty code if CCA/CA
rating is input.
4. Press STK#/Code key to start test.
NOTE:
Stock numbers are listed on the
reference card located in the tester's
cover. Stock numbers can also be
referenced on TIS. The TIS listings
will always have up±to±date
information.
Stock number location in TIS:
1. Go to TIS Home Page.
2. Click on ªDiagnostics.º
3. Click on ªMidtronics Battery Tester
Software.º
4. Click on ªStock Number Chart.º Recommended
Equipment
Inspection
Procedure