Mazda 6 Service Manual: No.18 cooling system concerns-runs cold

No.17 cooling system concerns-overheating

No.19 exhaust smoke

Other materials:

Mazda 6 Service Manual: Foreword
When the customer reports a vehicle malfunction, check the malfunction indicator lamp (MIL) indication and diagnostic trouble code (DTC), then diagnose the malfunction according to following flowchart. - If a DTC exists, diagnose the applicable DTC inspection. (See DTC TABLE.) - ...

Mazda 6 Service Manual: Climate control unit inspection
Full-auto Air Conditioner 1. Connect the all center panel connectors. 2. Turn the ignition switch to ON position. 3. Measure the voltage at each climate control unit terminal and refer to the terminal voltage list. If not as specified, inspect the parts listed under Action and the relate ...