Brush Holder Test

WARNING: This page is about a different car, the 1992 Acura NSX and 1991 Acura NSX. However, it is still accessible from the selected car via links, so may be relevant.

Check that there is no continuity between positive (+) and negative (-) brush holders. See Fig 1 . If continuity exists, replace brush holder assembly.
Insert brush into brush holder, and bring brush into contact with commutator, then attach a spring scale to spring. Measure spring tension at moment spring lifts off brush.
Spring Tension: 19-24 N (1.9-2.4 kg, 4.2-5.3 lb) See Fig 2 .

Fig 1: Identifying Positive (+) & Negative (-) Brush Holders

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Checking Spring Tension

Courtesy of AMERICAN HONDA MOTOR CO., INC.