Warning
1. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.)
2. Disconnect the ECT sensor connector.

3. Remove the ECT sensor.
4. Install in the reverse order of removal.
Tightening torque 10-14 N·m
{1.02-1.42 kgf·m, 7.38-10.32 ft·lbf}
5. Refill the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.)
Manifold absolute pressure (map) sensor inspection
Engine coolant temperature (ect) sensor inspectionMazda 6 Service Manual: Oil pressure switch inspection
Caution
Water or foreign objects entering the connector can cause poor
connection or corrosion. Be sure not to drop water or foreign objects on the
connector when disconnecting it.
On-vehicle Inspection (harness inspection)
1. Disconnect the negative battery cable.
2. Remove the under ...
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 ...