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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:

Front Combination Light Disassembly/Assembly
1. Disassemble in the order shown in the figure. Halogen type 1 Short cord (See Short Cord Removal Note.) 2 Parking/Front turn light bulb (See PARKING/FRONT TURN LIGHT BULB REMOVAL/INSTALLATION.) 3 Headlight ...

Pressure Sensor [Two Step Deployment Control System]
Purpose The pressure sensor determines at an earlier stage whether to detonate the air bag on the side of the vehicle (around front door) receiving an impact. This is for improved accuracy of the side air bag operation (deployment). Function When the vehicle is involved in ...

Emission System
Purpose, Outline A single-nano catalyst has been adopted for the under-floor, three-way catalyst to improve emission gas purification efficiency. Structural View Engine compartment side Exhaust system side 2WD AWD Fuel tank side U.S.A. and CANADA (2WD) U.S.A. a ...

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