Electrical System: Connectors: Inspection

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

To prevent damage to the terminal, wrap a thin wire around the tester probe before inserting into terminal.
When a tester is used to inspect for continuity or measuring voltage, insert the tester probe from the wiring harness side.

Fig 1: Caution For Checking Wiring Harness Continuity
Courtesy of MAZDA MOTORS CORP.
Inspect the terminals of waterproof connectors from the connector side since they cannot be accessed from the wiring harness side.

Fig 2: Caution For Inspecting Wiring Harness Terminals
Courtesy of MAZDA MOTORS CORP.