SWITCH ASSEMBLY
Using a circuit tester (set in "ohm"), check that there is continuity between terminals S and M, and between terminal S and ground.
Also check to be sure there is no continuity between terminals M and B.
Terminal/Specified resistance
S - M/Less than 1ohms
S - Ground/Less than 1 ohms
M - B/More than 1 Mohms
Checking Continuity Between Terminals S And M, And Between Terminal S And Ground. Scheme 22
Scheme 23
- Connect the terminal S of switch assembly to positive terminal of battery with a lead wire, and starter body to ground terminal of battery. The pinion should be forced endwise on shaft. CAUTION: With the pinion forced endwise on shaft, the starter motor may rotate because current flows through the pull-in coil to motor, however, this is not a problem.
- Disconnect the connector from terminal M, and then connect the positive terminal of battery and terminal M using a lead wire and ground terminal to starter body. In this test set up, the pinion should return to its original position even when it is pulled out with a screwdriver. (Scheme 23): Identifying Terminal M And S