Mazda CX-5 Service & Repair Manual: Air Fuel Ratio (A/F) Sensor 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 A/F sensor, it could cause interference with the A/F sensor function.
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When removing the A/F sensor, 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. Remove the plug hole plate..
3. Disconnect the A/F sensor connector.
4. Remove the clip from the heat insulator.
5. Remove the wiring harness from the wire clip A and B..
6. Remove the A/F sensor using the SST
.
7. Install in the reverse order of removal.
Assembly of Wiring Harness to Wire Clip Note
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Secure the heat shrinkable tube on the wiring harness to wire clip A.
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Secure the band on the wiring harness so that the band is positioned on both sides of wire clip B.
Air Fuel Ratio (A/F) Sensor Inspection
A/F Sensor 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-M ...
Air Fuel Ratio (A/F) Sensor
Purpose/Function
Detects the oxygen concentration (all-range air/fuel ratio) in the exhaust
gas as basic information for mainly determining the fuel injection amount.
Detects the oxy ...
Other materials:
Brake Pedal Inspection
Pedal Height Inspection
1. Measure the distance from the center of the upper surface of the pedal pad
to the insulator and verify that it is as specified.
If not within the specification, inspect the following items and repair or
replace the applicable part if there is any malfunct ...
Steering Angle Sensor Inspection
1. Remove the column cover..
2. Connect the plus (+) end of a tester to steering angle sensor terminal A and
the minus (-) end of the tester to terminal B (GND).
3. Switch the ignition ON (engine off or on).
4. Turn the steering wheel to the left and right.
5. Verify that the voltage f ...
Traction Control System (TCS)
The Traction Control System (TCS) enhances traction and safety by controlling
engine torque and braking.
When the TCS detects driving wheel slippage, it lowers engine torque and operates
the brakes to prevent loss of traction.
This means that on a slick surface, the engine adjusts automaticall ...