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Mazda CX-5 Service & Repair Manual: Heated Oxygen Sensor (HO2 S) Heater Control

Mazda CX-5 Service & Repair Manual / Engine / Control / Heated Oxygen Sensor (HO2 S) Heater Control

Outline

Block Diagram


Operation


Output duty ratio

Control condition

0%

  • Engine stopped

  • Fuel cut injection control is in engine start zone

  • Engine coolant temperature is -10 °C {14 °F}or less

  • Other than battery voltage of 10—16 V

  • Within a fixed period of time after engine start (varies according to engine coolant temperature)

30%

  • HO2S not activated

0?100%

(Determined by engine speed and charging efficiency)

  • Other than the above


Engine Coolant Temperature (ECT) Sensor
Purpose/Function Detects the ECT as basic information for mainly determining the fuel injection amount. Detects the ECT and inputs it to the PCM as an ECT signal. The ECT sen ...

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.. ...

Other materials:

Glass/Windows/Mirrors
Outline The following glass has been adopted. Windshield Front door glass Rear door glass Rear door quarter glass Quarter window glass Rear window glass Outer mirror glass The following mirrors h ...

Seat Weight Sensor Inspection [Two Step Deployment Control System]
CAUTION: If any of the following work is performed, perform the seat weight sensor inspection using the M-MDS. Removal of the passenger-side seat Loosening and retightening of passenger’s seat fixing bolts Or, the vehicle is involved in a collision ...

Sas Control Module Removal/Installation [Standard Deployment Control System]
WARNING: Handling the SAS control module or air bag module improperly can accidentally deploy the air bag modules and pre-tensioner seat belts, which may seriously injure you. Read the air bag system service warnings and cautions before handling the air bag module.. If the c ...

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