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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.)


Accelerator Pedal Position (App) Sensor
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:

Pre Delivery Inspection
Pre?Delivery Inspection Table Exterior INSPECT and ADJUST, if necessary, the following items to specification: ?Glass, exterior bright metal and paint for damage ?Wheel lug nuts ?All weatherstrips for damage or detachment ?Adjust tire pressures to specification Adjust the tire pr ...

Shift Pressure Control (Learning Control) [Fw6 A EL, Fw6 Ax EL]
Outline The TCM optimizes the hydraulic pressure for clutch engagement and disengagement through learning correction of the clutch engagement pressure. NOTE: The clutch engagement pressure learning value stored in the TCM is not cleared even if the negative battery termina ...

Planetary Gear [Fw6 A EL, Fw6 Ax EL]
Purpose/Function The planetary gear is a mechanism which shifts the drive force from the engine. The planetary gear consists of multiple gears which rotate individually while revolving. By controlling the individual rotation and revolving of the gears, the transaxle performs gear shi ...

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