Mazda 6 Service Manual: Dtc p0037

Dtc p0032

Dtc p0038

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Mazda 6 Service Manual: To Resume Cruising Speed at More Than 25 km/h (16 mph)
If some other method besides the OFF/ CANCEL switch was used to cancel cruising speed (such as applying the brake pedal) and the system is still activated, the most recent set speed will automatically resume when the RESUME/ switch is pressed. If vehicle speed is below 25 km/h (16 mph), incre ...

Mazda 6 Service Manual: Obd drive mode
Performing the Drive Mode inspects the OBD system for proper operation. The Drive Mode must be performed to ensure that no additional DTCs are present. During Drive Mode, the following systems are inspected: - Oxygen sensor (HO2S) - Oxygen sensor heater - Catalytic converter (TW ...