Circuit between part and body ground

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
Disconnect the ground plate. (For servicing Mazda M Hybrid related parts)
Disconnect the connector on the part side of the circuit to be inspected.

Courtesy of MAZDA MOTORS CORP.
NOTE:
- For the connector disconnection procedure, refer to the removal/installation procedure for each part.
Inspect for continuity between the part-side connector applicable terminal and body ground.

Courtesy of MAZDA MOTORS CORP.

If there is continuity:
- There is no open circuit in the circuit, therefore the inspection is completed. If there is no continuity:
- To specify the malfunctioning location, go to the next step.
Inspect for loose or lifting ground point.
If there is any malfunction:
- Repair or replace the malfunctioning part.
If there is no malfunction:
- Go to the next step.

Refer to the wiring diagram and verify if there is a common connector between the applicable circuits.

If there is a common connector:

Disconnect the common connector and inspect the connector and terminal. (See CONNECTOR INSPECTION .)

Inspect each common connector for continuity to determine the malfunctioning location.

Courtesy of MAZDA MOTORS CORP.

Repair or replace the vehicle wiring harness which has an open circuit.

If there is no common connector:

Repair or replace the vehicle wiring harness.