Mazda CX-5 Service & Repair Manual: Heated Oxygen Sensor (HO2 S) Removal/Installation
WARNING:
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A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.
CAUTION:
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Do not allow flammable objects such as the taping for bundling wiring harness to come into contact with the exhaust manifold and silencer.
NOTE:
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If penetrant lubricating spray penetrates the airflow hole of the HO2S, it could cause interference with the HO2S function.
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When removing the HO2S, wrap a rag around the lower position so that penetrant lubricating spray does not get sprayed into the airflow hole.
1. Disconnect the negative battery cable..
2. Lift up the vehicle.
3. Remove the floor under cover. (vehicles with floor under cover).
4. Remove the insulator and brace bar. (2WD).
5. Disconnect the HO2S connector.
6. Remove the clip A from the bracket.
7. Remove the clip B.
8. Remove the HO2S using the SST
.
9. Install in the reverse order of removal.
Heated Oxygen Sensor (HO2 S) Inspection
HO2S Inspection
1. Connect the M-MDS to the DLC?2.
2. Switch the ignition ON (engine on).
3. Warm up the engine to normal operating temperature.
4. Access the following PIDs using the M-MDS..
...
Heated Oxygen Sensor (HO2 S)
Purpose/Function
Detects the oxygen concentration (theoretical air/fuel ratio) in the exhaust
gas as basic information for mainly determining the fuel injection amount and
as information ...
Other materials:
Antenna Feeder No.3 Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. B-pillar lower trim.
b. Front seat belt adjusting cover.
c. Front seat belt upper anchor installation bolt.
d. B-pillar upper trim.
e. Trunk board.
f. Trunk end trim.
g. Trunk side trim.
h. D-pillar trim. ...
Auxiliary Jack/Usb Port Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the upper console..
3. While pressing the auxiliary jack/USB port. tabs in the direction of the arrows
(1) shown in the figure, press the auxiliary jack/USB port. in the direction of
the arrow (2) to detach the auxiliary jack/USB port. tab ...
Manual Transaxle Removal/Installation [C66 M R]
Removal
1. Disconnect the negative battery cable..
2. Remove the plug hole plate..
3. Remove the front under cover No.2..
4. Remove the front under cover No.1..
5. Remove the splash shield..
6. Drain the manual transaxle oil..
7. Disconnect and/or remove the following parts in the engin ...
