Mazda 6 Service Manual: Dtc c1955, c1956

Dtc c1953, c1954

Diagnostic procedure ...

Dtc u2021

Note To warm up the engine completely, idle the engine and wait for more than 5 minutes. Diagnostic procedure ...

Other materials:

Mazda 6 Service Manual: Key reminder switch inspection
1. Disconnect the negative battery cable. 2. Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION) 3. Disconnect the key reminder switch connector. 4. Inspect for continuity between the key reminder switch terminals using an ohmmeter. If not as specified, replace the key reminder ...

Mazda 6 Service Manual: Anti-theft system
Alarm Conditions If the anti-theft system protection has been activated, any one of the following conditions will trigger the system: - Disconnected battery cable - Discharged battery - Disconnected audio unit connectors If the system is triggered, the audio unit will then be ...