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:

Drive Belt
Purpose, Function The drive belt transmits rotation force of the crankshaft pulley to the pulley for the auxiliary parts. Construction The drive belt is installed to the front of the engine. A V-ribbed belt has been adopted for the drive belt. The wat ...

Auxiliary Jack/Usb Port Inspection
Auxiliary jack inspection 1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Upper console. b. Auxiliary jack/USB port. 3. Connect a commercially-available plug to the external input unit. 4. Verify that the continuity between the external input unit terminal ...

Passenger Compartment Temperature Sensor [Full Auto Air Conditioner]
Purpose The passenger compartment temperature sensor detects the cabin temperature. Function The passenger compartment temperature sensor converts the detected temperature to an electric signal. Construction A thermistor-type passenger compartment temperature sens ...

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