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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:

Front Side Frame (Partial Cutting) Removal [Panel Replacement]
Symbol Mark Removal Procedure 1. Drill the 4 locations indicated by (A) shown in the figure, then remove suspension mounting reinforcement and outer frame reinforcement. 2. Rough cut location indicated by (B) shown in the figure. 3. Drill the 6 locations indicated by (C) shown in the fig ...

Room Straight Line Dimensions (2) [Dimensions]
Point symbol Designation Hole diameter or bolt or nut size mm {in} A Front seat belt upper anchor installation ?14 {0.55} B Front seat belt upper anchor installation ?14 ...

Lighting Systems
Outline Front combination lights have been adopted with parts related to the front exterior lights grouped and housed together. The following systems have been adopted to the headlights. Discharge headlight system (with discharge headlight system) Auto light ...

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