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:
Liftgate Garnish Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Liftgate upper trim.
b. Liftgate side trim.
c. Liftgate recess.
d. Liftgate lower trim.
3. Disconnect the connectors.
4. Remove nuts A.
5. Detach clips B shown in the figure.
6. Remove the liftgate ...
Automatic Transaxle Shift Mechanism Removal/Installation
Selector Lever Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the front console..
3. Disconnect the selector lever component connector.
4. Remove the selector cable (selector lever side)..
5. Remove the nuts from the selector lever.
6. Remove the knob.
...
Power Brake Unit Removal/Installation
CAUTION:
Once the brake switch clearance has automatically been adjusted, it cannot
be adjusted again. Therefore, replace the switch with a new one when replacing
the power brake unit or performing any procedure that changes the pedal stroke.
1. Remove the battery and battery tra ...