Mazda 3 manuals

Mazda 3 Service Manual: Engine Coolant Temperature (ECT) Sensor Inspection [Mzr 2.0, Mzr 2.5]

Mazda 3 Service Manual / Engine / Control / Sensors, Switches, Relays / Engine Coolant Temperature (ECT) Sensor Inspection [Mzr 2.0, Mzr 2.5]

ECT Sensor No.1

Resistance inspection

WARNING:

1. Remove the battery cover..

2. Disconnect the negative battery cable..

3. Drain the engine coolant..

4. Remove the battery and battery tray..

5. Disconnect the ECT sensor No.1 connector.

6. Remove the ECT sensor No.1..

7. Place the ECT sensor No.1 in water with a thermometer, and heat the water gradually.

8. Measure the resistance between ECT sensor No.1 terminals A and B.


Specification


ECT (C {F})

Resistance (kilohms)

20 {68}

Approx. 37.34

80 {176}

Approx. 3.84


ECT Sensor No.2 Inspection

Resistance inspection

WARNING:

1. Remove the battery cover..

2. Disconnect the negative battery cable..

3. Drain the engine coolant..

4. Disconnect the ECT sensor No.2 connector.

5. Remove the ECT sensor No.2..

6. Place the ECT sensor No.2 in water with a thermometer, and heat the water gradually.

7. Measure the resistance between ECT sensor No.2 terminals A and B.


Specification


ECT (C {F})

Resistance (kilohms)

20 {68}

Approx. 2.45

80 {176}

Approx. 0.318


Crankshaft Position (CKP) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
Removal CAUTION: When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine ...

Engine Coolant Temperature (ECT) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
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. ECT Sensor No.1 1. Remove the battery cover.. 2. D ...

Other materials:

Oil Pressure Switch Inspection [FS5 A EL]
CAUTION: Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it. On-Vehicle Inspection 1. Perform the following procedures. a. Remove the aerodynamic under co ...

Recommended Tire Inflation Pressure
On the tire label you will find the recommended tire inflation pressure in both kPa and psi for the tires installed as original equipment on the vehicle. It is very important that the inflation pressure of the tires on your vehicle is maintained at the recommended pressure. You should che ...

Blind Spot Monitoring (Bsm) Control Module Removal/Installation
CAUTION: If the BSM control modules are installed with the left and right modules reversed, a DTC will be displayed and system will enter the fail-safe function. Therefore, confirm that the left/right BSM control modules are installed correctly. 1. Disconnect the negative battery ...

2016-2024 Copyright www.mazda3tech.com