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.

2003 Mazda Protege5 AutomaticFACTORY OEM SERVICE PROCEDURE

Keyless Control Module Removal/Installation: 5HB

Disconnect the negative battery cable.
Disconnect the keyless control module connector, (under driver's side dash)
Remove the bolt to remove the keyless control module and the bracket as a module.

Fig 1: Removing Keyless Control Module
Courtesy of MAZDA MOTORS CORP.
Remove the screw.
Push the stopper using a small driver, and remove the bracket.

Fig 2: Pushing Stopper Using Small Driver

Courtesy of MAZDA MOTORS CORP.

Install in the reverse order of removal.

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.