Alternator Brush Inspection

1. Remove the end cover, then take out the regulator assembly by removing the two screws.

2. Measure the length of the alternator brushes with a vernier caliper.

Alternator Brush Length: Standard: 12.5 mm (0.49 in) Service Limit: 2.5 mm (0.10 in)

If the brushes are not within the service limit, replace the regulator assembly.

Regulator Assembly Inspection

1. Measure the resistance between the L and IG terminals.

Standard: 12012 (about)

If the resistance is not within the standard, replace the regulator assembly.

2. Check for continuity between the IG and A, FR and C terminals. There should be continuity in only one direction.

If there is continuity in both directions, replace the regulator assembly.