Main Relay Operation Inspection

WARNING: This page is about a different car, the 2020 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Verify that the main relay clicks when the ignition is switched ON and then off.
- If there is no operation sound, inspect the following:
- Main relay (See RELAY INSPECTION .)
- Wiring harness and connector between battery and main relay terminal A
- Wiring harness and connector between PCM terminal 2B and main relay terminal E