Sienna AWD V6-3.3L (3MZ-FE) (2004)
Battery: Testing and Inspection
CHECK BATTERY ELECTROLYTE LEVEL
a. Check the electrolyte quantity of each cell.
1. If the electrolyte is under the low level, replace the battery (or add distilled water if possible) and check the charging system.
CHECK BATTERY SPECIFIC GRAVITY
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 battery.
CHECK BATTERY VOLTAGE
a. If it has not been 20 minutes since you drove the vehicle or since the engine was stopped, turn the ignition switch and the electrical system
(headlight, blower motor, rear defogger etc.) to the on position for 60 seconds. This will remove the surface charge on the battery.
b. Turn off the ignition switch and the electrical systems.
c. Measure the battery voltage between the negative (-) and positive (+) terminals of the battery.
Standard voltage: 12.6 to 12.8 V at 20 °C (68 °F)
HINT: If the voltage is less than specification, charge the battery.
d. Check the indicator as shown in the illustration.
HINT:
-
Blue: OK
-
White: Charging Necessary
-
Red: Insufficient Water
CHECK BATTERY TERMINALS, FUSIBLE LINK AND FUSES
a. Check that the battery terminals are not loosened or corroded.