Mazda CX-5 Service & Repair Manual: Fuel Pump Relay
Purpose, Function
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Controls the fuel pump on/off according to control signals from the PCM.
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The fuel pump is operated only at engine start or when the engine is running to improve safety.
Construction
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The fuel pump relay is installed in the relay and fuse block.
Operation
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The contact point is on when the battery voltage is supplied to the coil based on the signal from the PCM, and the battery voltage is supplied to the fuel pump control module.
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For the fuel pump control, refer to CONTROL SYSTEM..
Fail-safe
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Function not equipped.
Fuel Pressure Sensor
Purpose/Function
Detects the fuel pressure in the fuel distributor as basic information for
mainly determining the fuel injection amount.
Detects the fuel pressure in the fuel distri ...
Fuel Tank Pressure Sensor Inspection
Voltage Inspection
NOTE:
The fuel tank pressure sensor cannot be removed as a single unit. When replacing
the fuel tank pressure sensor, replace it together with the charcoal canister
a ...
Other materials:
Igniter Removal/Installation
WARNING:
Incorrect servicing of the discharge headlights could result in electrical
shock. Before servicing the discharge headlights, always refer to the service
warnings..
Igniter (LH)
1. Disconnect the negative battery cable..
2. Remove the air cleaner cover..
3. Remove th ...
Liftgate Light Removal/Installation
NOTE:
Fogging or condensation on the inside of the liftgate light may occur, however,
it is a natural phenomenon occurring as a result of a temperature difference
between the interior and exterior of the liftgate lights and has no effect on
the light performance. Fogging or condensa ...
Auto Dimming Mirror Inspection
1. Measure the voltage at each terminal.
If the voltage is not as specified in the Terminal Voltage Table (Reference),
inspect the parts under “Inspection item (s)” and related wiring harnesses.
If the system does not work properly even though the inspection items
or ...
