
Diagnostic Procedure

Dtc 58
Dtc 02, 18, 21 (when two or more dtcs are indicated at the same time)Mazda 6 Service Manual: Dtc clearing procedure
1. Start the on-board diagnostic test mode.
2. First press the POWER button, then simultaneously press AUDIO CONT button
for 2 seconds or more.
Caution
Before clearing the DTCs, be sure to enter all of them displayed
in the on-board diagnostic test mode in the Audio Repair Order Form. ...
Mazda 6 Service Manual: Control system
L.H.D.
R.H.D.
...