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.
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HOMESERVICE MANUALSMAZDA1999MX-5 MIATA L4-1.8L DOHCREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - RESTRAINTS AND SAFETY SYSTEMSAIR BAG CONTROL MODULESERVICE AND REPAIR
1999 Mazda MX-5 Miata L4-1.8L DOHC
Air Bag Control Module: Service and Repair
1999 Mazda MX-5 Miata L4-1.8L DOHCSECTION Service and Repair
WARNING: Handling the SAS control module improperly can accidentally deploy the air bag modules and which may seriously injure you. Read AIR BAG SYSTEM SERVICE WARNINGS before handling the SAS control module. (Refer to AIR BAG SYSTEM SERVICE WARNINGS.)
1. Turn the ignition switch to LOCK.
2. Disconnect the negative battery cable and wait for more than 1 minute to allow the backup power supply of the SAS control module to deplete its stored power.
3. Remove the dashboard. (Refer to DASHBOARD REMOVAL/INSTALLATION.)
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.
6. Turn the ignition switch to ON.
7. Verify that the air bag system warning light illuminates for approximately 6 seconds then goes off.
8. If the air bag system warning light remains on, off, or repeats flashing after servicing, there are malfunctions in the system. Carry out the inspection again. (Refer to AIR BAG SYSTEM ON-BOARD DIAGNOSIS.)
Nut Installation Note: Tighten the nuts in the order shown in the figure.
1. Turn the ignition switch to LOCK.
2. Disconnect the negative battery cable and wait for more than 1 minute to allow the backup power supply of the SAS control module to deplete its stored power.
3. Remove the dashboard. (Refer to DASHBOARD REMOVAL/INSTALLATION.)
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.
6. Turn the ignition switch to ON.
7. Verify that the air bag system warning light illuminates for approximately 6 seconds then goes off.
8. If the air bag system warning light remains on, off, or repeats flashing after servicing, there are malfunctions in the system. Carry out the inspection again. (Refer to AIR BAG SYSTEM ON-BOARD DIAGNOSIS.)
Nut Installation Note: Tighten the nuts in the order shown in the figure.
RENDER: 1.0x
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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.