Charging System On-Vehicle Inspection - Lexus 2005 IS300 User Manual

Except Maintenance-free Battery
Maintenance-free Battery
2005 LEXUS IS300 (RM1140U)
CHARGING -
CHARGING SYSTEM
ON-VEHICLE INSPECTION
CAUTION:
F
Check that the battery cables are connected to the
correct terminals.
F
Disconnect the battery cables when the battery is giv-
en a quick charge.
F
Do not do tests with a high voltage insulation resis-
tance tester.
F
Never disconnect the battery while the engine is run-
ning.
1. CHECK BATTERY ELECTROLYTE LEVEL
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). Check the charging system.
Except Maintenance-free Battery:
If under the lower level, add distilled water.
2. Except Maintenance-free Battery:
CHECK BATTERY SPECIFIC GRAVITY
Check the specific gravity of each cell.
Standard specific gravity: 1.25 - 1.29 at 20°C (68°F)
If the specific gravity is less than specification, charge the bat-
tery.
B01372
3. Maintenance-free Battery:
Voltmeter
CHECK BATTERY POSITIVE 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.
B01888
(c) Measure the battery positive voltage between the nega-
tive (-) and positive (+) terminals of the battery.
Standard voltage: 12.5 - 12.9 V at 20°C (68°F)
If the voltage is less than specification, charge the battery.
4. CHECK BATTERY TERMINALS AND FUSES
(a) Check that the battery terminals are not loose or cor-
roded.
If the terminals are corroded, clean the terminals.
(b) Check the fusible link and fuses for continuity.
CHARGING SYSTEM
Author :
CH-1
CH043-05
Date :
1539