Mazda 6 Service Manual: Dtc 21

Inspection of dtcs for operation mode

Note The cruise set indicator light will illuminate for 3 seconds? when operation mode is on. If the cruise set indicator light does not illuminate for 3 seconds (Operation mode is not on) ...

Dtc 22

Diagnostic procedure ...

Other materials:

Mazda 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: Spark plug removal/installation
1. Disconnect the negative battery cable. 2. Remove the plug hoie plate. Lift off and remove the plug hole plate from the installation areas (rubber and clips) as shown in the figure. 3. Disconnect the high-tension lead. 4. Remove the spark plugs using the plug-wrench. 5. Install th ...