Checking Switches: Notes

In a circuit diagram, a switch is shown in the idle state.

1. Normally open or normally closed switch

   Switches are classified into those which open the circuit and those which close the circuit when off.

   Switches are shown in their normal state unless specified otherwise.

   Fig 1: Switch Circuit Diagram

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Switch connection

   This figure illustrates a complex switch. The continuity between terminals at each position is as indicated in the table below.

   CONTINUITY SPECIFICATION
   
   

   SWITCH POSITION	TESTER CONNECTION	SPECIFIED CONDITION
   OFF	-	-
   1st stage	1-5-6	Continuity
   2nd stage	1-4-6	Continuity
   3rd stage	1-3-6	Continuity
   4th stage	1-2-6	Continuity

   Fig 2: Identifying Switch Connection

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.