Mazda CX-5 Service & Repair Manual: Heated Oxygen Sensor (HO2 S) Removal/Installation
WARNING:
-
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:
-
Do not allow flammable objects such as the taping for bundling wiring harness to come into contact with the exhaust manifold and silencer.
NOTE:
-
If penetrant lubricating spray penetrates the airflow hole of the HO2S, it could cause interference with the HO2S function.
-
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:
Refrigerant Pressure Sensor Inspection [Full Auto Air Conditioner]
1. Install the manifold gauge.
2. Verify the high-pressure side reading of the manifold gauge.
3. Measure the terminal voltage at PCM terminal 2BB, 2AX and 2AJ
4. Using the graph below, measure and verify the terminal voltages at 2AX.
5. Follow the PCM inspection when measuring the other te ...
Hydraulic Variable Valve Timing Actuator
Purpose, Function
The hydraulic variable valve timing actuator operates according to the hydraulic
pressure and changes the phases of the exhaust camshaft. As a result, the open/close
period of the exhaust valve is changed, optimized valve timing in accordance
with driving conditions ...
Side Air Bag Module Removal/Installation [Standard Deployment Control System]
WARNING:
Handling the air bag module improperly can accidentally operate (deploy)
the air bag module, which may seriously injure you. Read the air bag system
service warnings and cautions before handling the air bag module..
If the side air bag module is installed with debris i ...
