
Diagnostic procedure

Dtc table
Dtc 09:er20Mazda 6 Service Manual: Water pump
1. Disconnect the negative battery cable.
2. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.) (See
ENGINE COOLANT REPLACEMENT.)
3. Loosen the water pump pulley bolt to remove the drive belt. (See DRIVE
BELT REPLACEMENT.)
4. Remove in the order indicated in the table.
5. Insta ...
Mazda 6 Service Manual: Obd drive mode
Performing the Drive Mode inspects the OBD system for proper operation.
The Drive Mode must be performed to ensure that no additional DTCs are
present.
During Drive Mode, the following systems are inspected:
- Oxygen sensor (HO2S)
- Oxygen sensor heater
- Catalytic converter (TW ...