Mazda 6 Service Manual: Engine coolant temperature (ect) sensor inspection
Note
- Perform the following inspection only when directed.
ECT Sensor Resistance Inspection
1. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.)
2. Remove the ECT sensor (located above the starter).
3. Place the ECT sensor in water with a thermometer, and heat the water gradually.
4. Measure the resistance between the ECT sensor terminals A and B using an ohmmeter.
- If not as specified, replace the ECT sensor.
- If the ECT sensor is okay, but ECT PID value is out of specification, perform the Circuit Open/Short Inspection.
Specification
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION.)
2. Inspect the following wiring harnesses for open or short. (Continuity check)
Open circuit
- If there is no continuity, the circuit is open. Repair or replace the harness.
- ECT sensor terminal A (harness-side) and PCM terminal 1M (harness-side)
- ECT sensor terminal B (harness-side) and PCM terminal 2H (harness-side)
Short circuit
- If there is continuity, the circuit is shorted. Repair or replace the harness.
- ECT sensor terminal A (harness-side) and power supply
- ECT sensor terminal A (harness-side) and body GND
- ECT sensor terminal B (harness-side) and power supply
Engine coolant temperature (ect) sensor removal/installation
Warning
When the engine is hot, it can badly burn. Turn off the engine and
wait until it is cool before removing the ECT sensor.
1. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARN ...
Crankshaft position (ckp) sensor inspection
Note
Perform the following inspection only when directed.
Resistance Inspection
1. Disconnect the CKP sensor connector.
2. Measure the resistance between CKP sensor terminals A and B using an ...
Other materials:
Mazda 6 Service Manual: Tire Pressure Monitoring System Initialization
In the following cases, system initialization must be performed so that the system
operates normally.
A tire pressure is adjusted.
Tire rotation is performed.
A tire or wheel is replaced.
The battery is replaced or completely drained.
The tire pressure monitoring system warning light i ...
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 ...