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.
1994 Mazda 929FACTORY OEM SERVICE PROCEDURE
Keyless Entry System
- Description
- Operation
- Electrical Component Locations
- Transmitter Servicing
- Self-Diagnostics
- Component Testing
- Central Processing Unit (CPU)
- Door Lock Actuator
- Door Lock Switch
- Door Key Cylinder Switch
- Door Lock Timer Unit
- Door/Trunk Opener Relay
- Notes
- Terminal "A" (Blue Wire) - To Door Lock Actuator (Driver Door)
- Terminal "B" (White/Green Wire) - To Trunk Lid Opener
- Terminal "D" (Light Green Wire) - To CPU
- Terminal "F" (Yellow/Green Wire) - To CPU
- Terminal "G" (Black/White Wire) - To 30-Amp DOOR LOCK Fuse
- Terminal "H" (Black/Yellow Wire) - To Ground
- Keyless Unit
- Troubleshooting
- Removal & Installation
- Wiring Diagrams
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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