Mazda 6 Service Manual: Dtc p0420

Dtc p0403

Dtc p0443

Other materials:

Mazda 6 Service Manual: Noise filter inspection
Brake Light Noise Filter 1. Inspect for resistance and continuity between the noise filter terminals using an ohmmeter. If not as specified, replace the noise filter. Rear Window Defroster Noise Filter Inspect for resistance and continuity between the noise filter terminals using an ...

Mazda 6 Service Manual: Door lock timer unit inspection
1. Measure the voltage at the door lock timer unit terminals (other than terminal 1E and 2W) as indicated below. If not as specified, inspect the parts listed under Action. 2. Disconnect the negative battery cable. 3. Disconnect the door lock timer unit connector and inspect for continuity ...