Chevrolet Spark manuals

Mazda CX-5 Service & Repair Manual: Fuel Pump Control

Outline

Block Diagram


Operation

Fuel pump relay


Relay ON/OFF

Control conditions

ON

  • When any of the following conditions is met:

    • When ignition is switched ON (for approx. 1 s)

    • During engine cranking

    • While engine is running

OFF

  • When engine is stopped


Fuel pump control module


Output duty ratio

Control conditions

95%

  • When any of the following conditions is met:

    • At engine start

    • Fuel pump control module malfunction (if request voltage is unobtainable)

10—90%

  • Feedback value from fuel pressure sensor is the specified value or more

    (Determined that high pressure fuel pump compression is high.)

  • Except for control conditions with output duty ratio of 5% or 95%

5%

  • When engine is stopped


Fuel pump operation circuit diagram


Fuel Pump Control Module
Purpose, Function Controls the voltage applied to the fuel pump for reducing fuel pump load and improving fuel economy. Controls the voltage applied to the fuel pump based on the con ...

Fuel Pump Unit Disassembly/Assembly
WARNING: Fuel is very flammable liquid. If fuel spills or leaks from the pressurized fuel system, it will cause serious injury or death and facility breakage. Fuel can also irritate skin ...

Other materials:

Engine Coolant
Inspecting Coolant Level WARNING Do not use a match or live flame in the engine compartment. DO NOT ADD COOLANT WHEN THE ENGINE IS HOT: A hot engine is dangerous. If the engine has been running, parts of the engine compartment can become very hot. You could be burned. Carefully inspect the e ...

Condenser
Purpose The condenser cools the high-temperature, highly pressurized refrigerant. Function The condenser cools the high-temperature, highly pressurized gaseous refrigerant compressed by the A/C compressor using the outside air, and changes it to liquid refrigerant. Co ...

Clock
Purpose The clock displays the current time, the passenger and rear seat belt status, the passenger air bag deactivation (PAD) switch status, and the seat warmer operation status to notify the user. Function Stores the time set by the user and displays the current time. ...

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