
Diagnostic procedure

Dtc p0751
Dtc p0753Mazda 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: Windshield wiper arm and blade removal/installation
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
3. Adjust the windshield wiper arm and blade. (See WINDSHIELD WIPER ARM AND
BLADE ADJUSTMENT.)
Windshield Wiper Arm Installation Note
Clean the windshield wiper arm connector shafts using a wire brus ...