WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Remove the driver-side air bag module. (See DUAL-STAGE DRIVER-SIDE AIR BAG MODULE .)
Connect the connector to the steering shift switch.
Connect the negative battery cable.
Measure the voltage at the steering shift switch.
- When inspecting terminal C for continuity, disconnect the steering shift switch connector.
If the value are not as specified in the TERMINAL VOLTAGE LIST (REFERENCE) , inspect the parts under "Action" and related wiring harnesses.
If the parts inspected under "ACTION" are found to be normal but the system still does not operate normally, replace the up or down switch according to the following conditions:
- The voltage is normal when the up switch is on and is abnormal when the down switch is on: Replace the down switch.
- The voltage is normal when the down switch is on and is abnormal when the up switch is on: Replace the up switch.

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.

Safety Warning

Steering Shift Switch Inspection: Notes

Use the Manual With the Right Hardware

When to See a Mechanic

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