Generator (For Hatchback) Inspection

Using a vernier caliper, measure the length of the exposed brushes.

Standard exposed length:

9.5 to 11.5 mm (0.374 to 0.453 in.)

Minimum exposed length:

4.5 mm (0.177 in.)

Check the generator rotor for open circuits.

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   Slip ring - Slip ring	20°C (68°F)	1.7 to 2.1 Ω

   Text in Illustration

   *1

   Slip Ring

   If the resistance is not as specified, replace the generator rotor assembly.
   

Check the generator rotor for short circuits.

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   Slip ring - Rotor	Always	10 MΩ or higher

   Text in Illustration

   *1	Slip Ring
   *2	Rotor

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

Check that the generator rotor bearing is not rough or worn.
If necessary, replace the generator rotor assembly.

Using a vernier caliper, measure the slip ring diameter.

Standard diameter:

14.2 to 14.8 mm (0.559 to 0.583 in.)

Minimum diameter:

14.0 mm (0.551 in.)

Check that the slip rings are not rough or scored.
If rough or scored, replace the generator rotor assembly.

Inspect the stator coil for open circuits.

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   Coil lead - Coil lead	Always	Below 1 Ω

   Text in Illustration

   *1

   Ohmmeter

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

Inspect the stator coil for ground.

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   Coil lead - Generator drive end frame assembly	Always	10 kΩ or higher

   Text in Illustration

   *1

   Ohmmeter

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

Inspect the generator drive end frame bearing.

1. Check that the bearing is not rough or worn.
   If necessary, replace the generator assembly.
   

Check the resistance.

1. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   
   

   Tester Connection	Condition	Specified Condition
   P1, P2, P3 and B	Always	Resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction.
   P1, P2, P3 and E	Always	Resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction.

   If the result is not as specified, replace the generator holder with rectifier.
   

Check the resistance.

1. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   
   

   Tester Connection	Condition	Specified Condition
   Terminals F - Terminals B	Always	When the positive and negative poles between terminals F and B are exchanged, there is a resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction.

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




2. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   
   

   Tester Connection	Condition	Specified Condition
   Terminals E - Terminals F	Always	When the positive and negative poles between terminals E and F are exchanged, there is a resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction.

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