Mazda B-Series - On-Board Diagnostic System; Self-Test Function; Diagnostic Assist Function

Entertainment Body & Accessories
On-Board Diagnostic System
• The OBD system of the modular audio system comprises a self-test and a diagnostic
assist function.
Self-Test Function
• The fault memory of the audio module can store up to three DTCs. If a fourth fault is
detected when three DTCs are already stored, the oldest DTC is deleted and the new
one stored.
• Once a DTC is stored in the non-volatile memory of the audio unit it can be displayed on
the information display when the test mode has been activated. In addition, the self-test
function allows deleting the stored DTCs.
Diagnostic Assist Function
• The diagnostic assist function allows checking of the following components:
– Information display
– Speakers
– Radio reception condition
– Antenna condition
NOTE: For further information about the self-test and diagnostic assist function refer to the
W/M.
09-20 Service Training BT-50