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.

2021 Mazda CX-3 AWDFACTORY OEM SERVICE PROCEDURE

Battery Removal/Installation: Notes

Remove in the order indicated in the table.
Install in the reverse order of removal.

Step 1

Fig 1: Battery Components With Torque Specification (Step 1)

Courtesy of MAZDA MOTORS CORP.

COMPONENT DESCRIPTION

1	Negative battery cable (See NEGATIVE BATTERY CABLE DISCONNECTION CONNECTION .) (See Negative Battery Cable Connection Note .)
2	Positive battery cable
3	Battery clamp
4	Battery, battery box
5	Battery box (See Battery Box Installation Note .)
6	Battery tray bolt
7	PCM connector (See Battery Tray and PCM Component Removal Note .) (See Battery Tray and PCM Component Installation Note .)
8	Battery tray and PCM component (See Battery Tray and PCM Component Removal Note .) (See Battery Tray and PCM Component Installation Note .)

Step 2

Fig 2: Battery Components With Torque Specification (Step 2)

Courtesy of MAZDA MOTORS CORP.

COMPONENT DESCRIPTION

1	PCM (See PCM REMOVAL/INSTALLATION .)
2	Bracket A (See Bracket A Installation Note .)
3	Bracket B

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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