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.
2024 Mazda CX-90 PHEV PreferredFACTORY OEM SERVICE PROCEDURE
Inspect Current Sensor: Notes
CAUTION:
- If the nut for the current sensor is loosened with the negative lead-acid battery cable terminal connected to the battery, excessive torque will be applied to the negative lead-acid battery cable terminal and the lead-acid battery terminal will be damaged. When removing the negative lead-acid battery cable terminal and current sensor, be careful not to damage the lead-acid battery terminal.
- Be careful not to contact the positive lead-acid battery cable terminal.
- Disconnect the current sensor connector before disconnecting the negative lead-acid battery cable terminal. If the negative lead-acid battery cable terminal is disconnected first, the PCM may mistakenly recognize a signal from the current sensor causing interference with the engine control.
- Connect the negative lead-acid battery cable terminal before connecting the current sensor connector. If the current sensor connector is connected first, the PCM may mistakenly recognize a signal from the current sensor and learn the lead-acid battery condition incorrectly.
- Verifying the tightness while holding the current sensor may apply excessive force to the negative lead-acid battery cable terminal and the terminal could loosen, causing poor engine starting. Therefore, hold only the terminal without holding the current sensor. The current sensor uses a waterproof connector.
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.