1. Remove the A/C unit. (See A/C UNIT REMOVAL/INSTALLATION.)
2. Remove the evaporator from the A/C unit.
3. Inspect for cracks, damage, and oil leakage.
4. Inspect for bent fins.
Expansion valve removal/installation
Heater core inspectionMazda 6 Service Manual: Dsc system inspection
Preparation
1. Verify that the battery is fully charged.
2. With ignition switch on, verify that the ABS warning light goes out after
2.4 seconds.
3. Turn the ignition switch off.
4. On level ground, jack up the vehicle and support it evenly on safety
stands.
5. Shift the transaxle to N posi ...
Mazda 6 Service Manual: Close Proximity Warning
If your vehicle rapidly closes in on the vehicle ahead because the vehicle applies
the brakes suddenly while you are traveling in headway control, the warning sound
activates and the brake warning is indicated in the display. Always verify the safety
of the surrounding area and depress the bra ...