On-Vehicle Inspection [11/2013 - 10/2015]: Procedure

1. Check the battery for damage and deformation. If damage, deformation or leakage is found, replace the battery.
2. Check the electrolyte level in of each cell.
   1. For maintenance-free batteries:
      • If the electrolyte level is below the lower line, replace the battery.
      • If the electrolyte level is above the lower line, check the battery voltage when cranking the engine. If the voltage is below 9.6 V, recharge or replace the battery.

      HINT: 

      Before checking the battery voltage, turn off all the electrical systems (headlights, blower motor, rear defogger, etc.).

   2. For non-maintenance-free batteries:
      • If the electrolyte level is below the lower line, add distilled water to each cell. Then, recharge the battery and check the electrolyte specific gravity.

        Standard Specific Gravity

        1.25 to 1.29 at 20°C (68°F)

      • If the electrolyte level is above the lower line, check the battery voltage when cranking the engine. If the voltage is below 9.6 V, recharge or replace the battery.

        HINT: 

        Before checking the battery voltage, turn off all electrical systems (headlights, blower motor, rear defogger, etc.).

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Check the voltage.
   1. Turn the ignition switch off and turn on the headlights for 20 to 30 seconds. This will remove the surface charge from the battery.
   2. Measure the battery voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection	Condition	Specified Condition
      Positive (+) terminal - Negative (-) terminal	20°C (68°F)	12.5 to 12.9 V

      If the voltage is not as specified, charge the battery.

1. Check that the battery terminals are not loose or corroded.

   If the terminal is corroded, clean the terminal.

   Positive (+) terminal 

   Torque: 5.3 N*m (54 kgf*cm, 4 ft.*lbf) 

   Negative (-) terminal 

   Torque: 5.3 N*m (54 kgf*cm, 4 ft.*lbf) 

2. Measure the resistance of the H-fuses and fuses.

   Standard Resistance

   Below 1 Ω

   If the result is not as specified, replace the fuse.

Refer to ON-VEHICLE INSPECTION [12/2012 - ]

1. Visually check the generator wiring.
   1. Check that the wiring is in good condition.

1. Listen for abnormal noises from the generator assembly.
   1. Check that no abnormal noises are heard from the generator assembly while the engine is running.

1. Turn the ignition switch to ON. Check that the charge warning light comes on.
2. Start the engine and check that the light goes off.

   If the light does not operate as specified, troubleshoot the charge warning light circuit.

1. Connect a voltmeter and an ammeter to the charging circuit as follows.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Battery
   *2	Generator Assembly
   *a	Terminal B

   HINT: 

   If a battery/generator assembly tester is available, connect the tester to the charging circuit in accordance with the manufacturer's instructions.

   1. Disconnect the wire from terminal B of the generator assembly and connect it to the negative (-) lead of the ammeter.
   2. Connect the ammeter positive (+) lead to the terminal B of the generator assembly.
   3. Connect the voltmeter positive (+) lead to the terminal B of the generator assembly.
   4. Ground the voltmeter negative (-) lead.
2. Check the charging circuit.
   1. Maintain the engine speed at 2000 rpm and check the readings on the ammeter and voltmeter.

      Standard Current

      10 A or higher

      Standard Voltage

      10.2 to 16.4 V

      If the result is not as specified, replace the generator assembly.

      HINT: 

      If the battery is not fully charged, the ammeter reading will sometimes be more than the standard current.

1. With the engine running at 2000 rpm, turn the high beam headlights on and turn the heater blower switch to the "HI" position.
2. Check the reading on the ammeter.

   Standard Current

   30 A or higher

   If the ammeter reading is below the standard current, repair the generator assembly.

   HINT: 

   If the battery is fully charged, the indication will sometimes be below the standard current. If this is the case, add more electrical load (operate the wipers, rear window defogger, etc.) and check the reading on the ammeter again.