Displays in the following cases:

Stop Vehicle in Safe Place Immediately
Message Indicated in Multi-information DisplayMazda 6 Owners Manual: Dtc c1955, c1956
Caution
When attaching the tester lead to the DSC HU/CM connector the SST
(49 G066 004) must be used.
Diagnostic procedure
...
Mazda 6 Owners Manual: Car-navigation unit removal/installation
1. Disconnect the negative battery cable.
2. Remove the glove compartment.
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
Car-navigation Unit Installation Note
Insert the car-navigation unit bracket into the dashboard member hole, and
with the c ...