Magnetic switch

1. Inspect for continuity between terminals S and M using a tester.
   • If there is no continuity, replace the magnetic switch.
   Fig 1: Checking Continuity Between Magnetic Switch Terminals S And M Using Tester

   Courtesy of MAZDA MOTORS CORP.
2. Inspect for continuity between terminal S and the body using a tester.
   • If there is no continuity, replace the magnetic switch.
   Fig 2: Checking Continuity Between Magnetic Switch Terminals S And Body Using Tester

   Courtesy of MAZDA MOTORS CORP.
3. Verify that there is no continuity between terminals M and B using a tester.
   • If there is continuity, replace the magnetic switch.
   Fig 3: Checking Continuity Between Magnetic Switch Terminals M And B Using Tester

   Courtesy of MAZDA MOTORS CORP.

Brush and brush holder 

1. Verify that there is no continuity between each insulated brush and plate using a tester.
   • If there is continuity, replace the brush holder.
   Fig 4: Checking Continuity Between Insulated Brush And Plate Using Tester

   Courtesy of MAZDA MOTORS CORP.
2. Measure the brush length.
   • If any brush is worn almost to or beyond the minimum specification, replace all of the brushes.

   Starter brush length 

   Standard: 12.3 mm {0.484 in} 

   Minimum: 5.5 mm {0.22 in} 

   Fig 5: Minimum Brush Length

   Courtesy of MAZDA MOTORS CORP.
3. Measure the brush spring force using a spring balance.
   • If not within the minimum specification, replace the brush and brush holder component.

   Starter brush spring force 

   Standard: 15.0-20.4 N {1.53-2.08 kgf, 3.38-4.58 lbf} 

   Minimum: 2.75 N {0.280 kgf, 0.618 lbf} 

   Fig 6: Measuring Brush Spring Force Using Spring Balance

   Courtesy of MAZDA MOTORS CORP.