Magnetic Switch

Coil open circuit test
- Check that there is continuity between the M terminal and body A.
- If there is no continuity, replace the magnetic switch.
  
  Fig 1: Checking That There Is Continuity Between M Terminal And Body A
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Contact fusion check
- Check that there is no continuity between the B terminal and M terminal.
- If there is continuity, replace the magnetic switch.
  
  Fig 2: Checking Continuity Between B Terminal And M Terminal
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Switch contact check
- Push the indicated end of the magnetic switch with a strong force to close the internal contacts. Without releasing the switch end, check that there is continuity between the B terminal and M terminal.
- If there is no continuity, replace the magnetic switch.
  
  Fig 3: Checking Switch Contact
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.