Mazda MX-5 Miata / Grand Touring. Manual — part 173

Fig. 15: Measuring Segment Groove Depth Of Commutator
Courtesy of MAZDA MOTORS CORP.

Magnetic Switch

1. Inspect for continuity between terminals S and M using a tester.



If there is no continuity, replace the magnetic switch.

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Starting System - MX-5 Miata

Fig. 16: Verifying If There Is Continuity Between Terminals S & M
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.

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Starting System - MX-5 Miata

Fig. 17: Verifying If There Is Continuity Between Terminal S & Body
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.

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Starting System - MX-5 Miata

Fig. 18: Verifying If There Is No Continuity Between Terminals M & B
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.

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Starting System - MX-5 Miata