Starter Interlock Switch Inspection

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Do not reuse the starter interlock switch if it is removed from the vehicle even once. Replace with a new starter interlock switch when installing.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Disconnect the starter interlock switch connector.
Verify that the continuity is as indicated in the table using a tester.

Fig 1: Starter Interlock Switch Terminals Continuity Chart
Courtesy of MAZDA MOTORS CORP.

Fig 2: Starter Interlock Switch Connector Terminals
Courtesy of MAZDA MOTORS CORP.
- If the continuity is not as indicated in the table, replace the starter interlock switch. (See STARTER INTERLOCK SWITCH REMOVAL/INSTALLATION .)