Discuss the matter with an Authorized Mazda Dealer. This is the quickest and best way to address the issue.
Mazda 6 Owners Manual: Intermittent rear wiper relay inspection
1. Connect the connector to the intermittent rear wiper relay.
2. Connect the negative battery cable.
3. Measure the voltage at the intermittent rear wiper relay using voltmeter.
When inspecting terminal D for continuity, disconnect the intermittent
rear wiper relay connector.
4. If the ...
Mazda 6 Owners Manual: No.2 air bag system warning light is illuminated all the time
Diagnostic Procedure
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 malfunction. If there
is a problem, check to make sure connec ...