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:
Automatic Transaxle Warning Light [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The automatic transaxle warning light illuminates when the transaxle has
malfunction.
Construction
The automatic transaxle warning light is built into the instrument cluster.
Operation
If the transmission has a malfunction, the TCM sends an ...
Front Map Light
Purpose
The front map lights shine light at the front of the vehicle interior.
Function
The front map lights illuminate when the map light switch is turned on.
Illuminates according to the lock condition of the driver's door and open/close
conditions of the doors u ...
Front Door Key Cylinder Switch Inspection
1. Perform the front door glass preparation..
2. Disconnect the negative battery cable..
3. Remove the following parts:
a. Inner garnish.
b. Front door trim.
c. Front door key cylinder.
d. Front door glass.
e. Front door module panel.
f. Front door latch and lock actuator.
Front Do ...
