
Diagnostic procedure

Dtc p0751
Dtc p0753Mazda 6 Service Manual: Operation of Automatic Air-conditioning
1. Press the AUTO switch. Selection of the airflow mode, air intake selector
and amount of airflow will be automatically controlled.
2. Use the temperature control dial to select a desired temperature. Press the
DUAL switch or turn the front passenger temperature control dial to control the
s ...
Mazda 6 Service Manual: Heated oxygen sensor (ho2s) inspection
HO2S Voltage Inspection
Note
Perform the following inspection only when directed.
1. Warm up the engine and run it at idle.
2. Disconnect the HO2S connector.
3. Connect the voltmeter test leads to the following HO2S terminals:
HO2S (front and rear)
- (+) leadterminal A
- (-) le ...