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Mazda CX-5 Service & Repair Manual: Heated Oxygen Sensor (HO2 S) Heater Control [Skyactiv G 2.0]

Mazda CX-5 Service & Repair Manual / HVAC / General / Heated Oxygen Sensor (HO2 S) Heater Control [Skyactiv G 2.0]

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


Front Heat Duct Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Dashboard under cover. b. Side wall. c. Glove compartment. 3. Detach the tab and remove the front heat duct. LH ...

Heater Core
Purpose The heater core heats passing air. Function A portion of the engine coolant is taken into the heater core to heat the air passing through the heater core. Co ...

Other materials:

Cargo Compartment Light
Purpose The cargo compartment light illuminates the cargo room interior when the liftgate is opened. Function When the liftgate is opened, illuminates by the cargo room light switch turning on. Construction The cargo room light is installed to the trunk side tr ...

Pre Tensioner Seat Belt [Two Step Deployment Control System]
Purpose The pre-tensioner seat belt retracts and tightens the seat belt webbing to protect the front passengers during a collision. Function The pre-tensioner seat belts operate (deploy) based on the operation signal from the SAS control module to instantly retract and tigh ...

Igniter Removal/Installation
WARNING: Incorrect servicing of the discharge headlights could result in electrical shock. Before servicing the discharge headlights, always refer to the service warnings.. Igniter (LH) 1. Disconnect the negative battery cable.. 2. Remove the air cleaner cover.. 3. Remove th ...

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