Mazda 6 Service Manual: Dtc p0420

Dtc p0403

Dtc p0443

Other materials:

Mazda 6 Service Manual: Foreword
Outline The OBD (on-board diagnostic) test inspects the integrity and function of the headlight auto leveling system and output the results when reqested by the specitic tests. OBD test also: - Provides a quick inspection of the headlight auto leveling system. - Is usually perfor ...

Mazda 6 Service Manual: No. 2 all on-board diagnostic functions inoperative
When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while doing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, check to make sure connectors, terminals and wir ...