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: Theft-deterrent control module inspection
1. Remove the theft-deterrent control module without disconnecting the
connectors.
2. Measure the voltage at the theft-deterrent control module terminals as
indicated below.
3. Disconnect the theft-deterrent control module connector before inspecting
for continuity at terminals L, Q, S, T, a ...
Mazda 6 Service Manual: Front fog light bulb removal/installation
1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table.
Caution
A halogen bulb generates extremely high heat when it is used. If
the surface of the bulb is soiled, excessive heat will build up and the
lights life will be shortened. When replacing the ...