1. Remove the rearview mirror.
2. Wind each end of a wire around a bar.

Warning
Note
3. Saw through the sealant to remove the base.
Rearview mirror installation
Base installationMazda 6 Service Manual: Exterior lighting system
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Mazda 6 Service Manual: Heated oxygen sensor (ho2s) inspection
HO2S Voltage Inspection
Note
Perform the following inspection only when directed.
1. Warm up the engine and run it at idle.
2. Disconnect the HO2S connector.
3. Connect the voltmeter test leads to the following HO2S terminals:
HO2S (front and rear)
- (+) leadterminal A
- (-) le ...