Sienna AWD V6-3.5L (2GR-FE) (2007)
d. Using a vernier caliper, measure the commutator's length.
Standard length: 3.3 to 4.0 mm (0.1299 to 0.1575 in.)
If the length is greater than the maximum, replace the starter armature.
4. INSPECT STARTER COMMUTATOR END FRAME ASSEMBLY
a. Using a vernier caliper, measure the brush length.
Specified length: 4.0 to 9.0 mm (0.158 to 0.354 in.)
If the length is less than the minimum, replace the starter commutator end frame.
b. Check the brush insulation.
1. Measure the resistance between the positive (+) and negative (-) brush.
Resistance: 10 kohms or higher
If the result is not as specified, repair or replace starter commutator end frame.