
Diagnostic procedure


Dtc b1869, b1870
Dtc b1877, b1878, b1879, b1885Mazda 6 Service Manual: A/c unit removal/installation
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.)
3. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT.)
4. Remove the dashboard. (See DASHBOARD REMOVAL/INSTALLATION.)
5. Remove the theft-deterrent control module. (See ...
Mazda 6 Service Manual: Multi-Information Display and INFO Switch (Some models)
The multi-information display indicates the following information.
Odometer
Trip meter
Engine coolant temperature gauge
Fuel gauge
Outside temperature
Distance-to-empty
Average fuel economy
Current fuel economy
Maintenance Monitor
...