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:
Pressure Control Valve [Skyactiv G 2.0]
U.S.A. And CANADA
Purpose, function
Prevents fuel tank damage by suppressing the vacuum applied to the fuel tank
while the purge solenoid valve is open.
Suppresses the vacuum applied from the charcoal canister side to the fuel
tank.
Construction
Integrated with the ...
Service Cautions
Injury/damage Prevention Precautions
Depending on the vehicle, the cooling fan may operate suddenly even when
the ignition is switched to off. Therefore, keep hands and tools away from the
cooling fan even if the cooling fan is not operating to prevent injury to personnel
or damage t ...
Automatic Transaxle Controls
Various Lockouts:
NOTE
The Sport AT has an option that is not included in the traditional automatic
transaxle giving the driver the option of selecting each gear instead of leaving
it to the transaxle to shift gears. Even if you intend to use the automatic transaxle
functions as a tradit ...
