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.

2004 Mazda 3 i, AutomaticFACTORY OEM SERVICE PROCEDURE

Open circuit

If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- MAP sensor terminal A and PCM terminal 2AA
- MAP sensor terminal D and PCM terminal 2AL
- MAP sensor terminal C and PCM terminal 2W
Fig 1: Identifying MAP Sensor Connector Terminals
Courtesy of MAZDA MOTORS CORP.

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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