Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2022 Mazda 3 BaseFACTORY OEM SERVICE PROCEDURE

Relay Inspection: Notes

Relay Type

CONNECTOR TYPE DESCRIPTION

Connector type	Part name
Type A	Windshield wiper de-icer relay Main relay Ig1 relay No. 1 Ig1 relay No. 2 Cooling fan relay No. 2 Cooling fan relay No. 2 Starter relay ACC relay Rear window defogger relay Horn relay Sub relay Fuel pump relay Electric variable valve timing relay A/C relay Electric at oil pump relay/ Cooling fan relay No. 1/ Cooling fan relay No. 2/
Type B	Blower relay

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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