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:

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Luggage compartment cover (5-door) WARNING Do not place anything on top of the cover: Placing luggage or other cargo on top of the luggage compartment cover is dangerous. During sudden braking or a collision, the cargo could become a projectile that could hit and injure ...

Customer Assistance (U.S.A.)
Your complete and permanent satisfaction is our business. We are here to serve you. All Authorized Mazda Dealers have the knowledge and the tools to keep your Mazda vehicle in top condition. If you have any questions or recommendations for improvement regarding the service of your Mazda ...

Passenger Compartment Temperature Sensor Removal/Installation [Full Auto Air Conditioner]
1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Front scuff plate. b. Front side trim. c. Dashboard under cover. d. Upper panel. e. Shift lever knob (MTX). f. Selector lever knob (ATX). g. Shift panel. h. Side wall. i. Console. j. Hood release lever ...

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