
Diagnostic Procedure

Dtc 19
Dtc 22Mazda 6 Service Manual: Heater core inspection
1. Remove the A/C unit. (See A/C UNIT REMOVAL/INSTALLATION.)
2. Remove the heater core from the A/C unit.
3. Inspect for cracks, damage, and coolant leakage.
If any problems are found, replace the heater core.
4. Inspect for bent fins.
If any are bent, use a flathead screwdriver to stra ...
Mazda 6 Service Manual: Call Interrupt
A call can be interrupted to receive an incoming call from a third party.
When is selected or the pickup
button on the steering wheel is pressed, the current call is held and the system
switches to the new incoming call.
When is selected, the current
call is ended and the system switches t ...