Note
1. Drive the vehicle at 30 km/h {19 mph} or more.
2. Press on the cruise control main switch (1).

3. Operate each of the cruise control switches.
4. Stop the vehicle and let it idle.
5. Turn and hold the RESUME/ACCEL switch on for at least 3 seconds (2).
The cruise set indicator light will illuminate for 3 seconds,
and then go off for at least 2 seconds.
Thus, the condition detection mode begins.
6. The condition detection mode is canceled by turning the ignition switch to LOCK position or turning off the cruise control main switch.
Condition Code List

Note
Inspection of Diagnostic Trouble Codes
Foreword
Dtc 37
Dtc 01Mazda 6 Service Manual: Exterior lighting system
...
Mazda 6 Service Manual: Accessory Sockets
Only use genuine Mazda accessories or the equivalent requiring no greater than
120 W (DC 12 V, 10 A).
Front
The ignition must be switched to ACC or ON.
Center
The accessory sockets can be used regardless of whether the ignition is on or
off.
CAUTION
To prevent accessory socket damag ...