Mazda 3 Service Manual: 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. 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 using the SST
.
7. Install in the reverse order of removal.
8. Refill the engine coolant..
ECT Sensor No.2
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 using the SST
.
NOTE:
-
Wipe off any oil or engine coolant if it gets on the ECT sensor No.2 installation area.
6. Install in the reverse order of removal.
7. Refill the engine coolant..
Engine Coolant Temperature (ECT) Sensor Inspection [Mzr 2.0, Mzr 2.5]
ECT Sensor No.1
Resistance inspection
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. Remove the ...
Fan Switch Inspection [Manual Air Conditioner]
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Upper panel.
b. Shift lever knob (MTX).
c. Selector lever knob (ATX).
d. Shift panel.
e. Side wall.
f. Consol ...
Other materials:
Antenna Feeder No.3 Inspection
4SD (With Audio System (With Display))
1. Disconnect the negative battery cable..
2. Remove the rain sensor cover. (Vehicles with auto light/wiper system).
3. Disconnect the rain sensor connector. (Vehicles with auto light/wiper system)
4. Partially peel back the seaming welts.
5. Remove t ...
Filament Repair
1. Clean the filament using isopropyl alcohol.
2. Attach tape to both sides of the filament.
3. Using a small brush or marking pen, apply silver paint.
4. After 2—3 min, carefully remove the tape without damaging the applied
area.
CAUTION:
Do not operate the rear window defro ...
Evaporator Temperature Sensor Inspection [Full Auto Air Conditioner]
NOTE:
Inspect the evaporator temperature sensor when it is installed to the A/C
unit.
1. Set the fan speed MAX HI.
2. Set the temperature control at MAX COLD.
3. Set the RECIRCULATE mode.
4. Turn the A/C switch off.
5. Close all doors and windows.
6. Wait for 5 min.
7. D ...
