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Mazda CX-5 Service & Repair Manual: Air Fuel Ratio (A/F) Sensor Heater Control

Mazda CX-5 Service & Repair Manual / Engine / Control / Air Fuel Ratio (A/F) Sensor Heater Control

Outline

Block Diagram


Operation

Pre-heater control

Normal control


Output duty ratio

Control condition

0%

  • Ignition switched off

  • Engine stopped

  • Engine start (cranking)

0?100%

(Duty ratio determined by measuring the element temperature by the A/F sensor heater element impedance)

  • After engine warm-up (value fluctuates by battery condition, etc.)


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Purpose/Function Detects the accelerator pedal depression amount as basic information for mainly determining the throttle valve opening. Detects the accelerator pedal depression amou ...

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 ...

Other materials:

Non Return Valve
Purpose, Function Assures safety by preventing fuel from returning to the fuel filler opening. Construction The non-return valve cannot be removed as it is installed inside the fuel tank. 2WD AWD A single valve type has been adopted for the non-return v ...

Interior Care
WARNING Do not spray water in the cabin: Splashing water on electrical parts such as the audio unit and switches is dangerous as it could cause a malfunction or a fire. Dashboard Precautions Prevent caustic solutions such as perfume and cosmetic oils from contacting the dashboard. They will ...

Starter Inspection [Skyactiv G 2.0]
On-vehicle Inspection 1. Verify that the battery is fully charged. 2. The starter is normal if it rotates smoothly and without any noise when the engine is cranked. If the starter does not operate, inspect the following: Remove the starter, and inspect the starter unit. ...

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