Mazda CX-5 Service & Repair Manual: 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 for determining the deterioration of catalytic converter.
-
Detects the oxygen concentration (theoretical air/fuel ratio) in the exhaust gas and inputs it to the PCM as an oxygen concentration (theoretical air/fuel ratio) signal.
Construction
-
Installed to the exhaust manifold.
-
A zirconia element has been adopted as the detecting element for detecting the oxygen concentration (theoretical air/fuel ratio).
Operation
-
Inputs the signal, which fluctuates according to the oxygen concentration (theoretical air/fuel ratio), to the PCM.
HO2S characteristic
Fail-safe
|
DTC No. |
Fail-safe function |
|
P0037:00 |
|
|
P0038:00 |
|
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 fla ...
Intake Air Temperature (Iat) Sensor Inspection
IAT Sensor No.1
Resistance inspection
NOTE:
Because the IAT sensor No.1 is integrated in the MAF sensor, replacing the
IAT sensor No.1 includes replacement of the MAF sensor/IAT sensor No ...
Other materials:
Charging System Warning Light [Skyactiv G 2.0]
Purpose, Function
Warns the driver of a charging system malfunction.
Construction
The charging system warning light is built into the instrument cluster..
Operation
Illuminates when a malfunction occurs in the charging system and DTCs is
stored in the PCM.
...
Neutral Switch
Purpose/Function
Detects the neutral position of the shift lever.
Construction
Installed to the manual transaxle.
An ON/OFF type switch has been adopted.
Operation
Inputs the neutral switch on/off signal to the PCM.
The contact point is on ...
Air Bag Module And Pre Tensioner Seat Belt Disposal Procedures [Standard Deployment
Control System]
WARNING:
A live (undeployed) air bag module or pre-tensioner seat belt may accidentally
operate (deploy) when it is disposed of and cause serious injury. Always refer
to the “AIR BAG MODULE AND PRE-TENSIONER SEAT BELT DEPLOYMENT PROCEDURES”
and dispose of air bag modules a ...
