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:
Sunroof Switch Inspection
1. Disconnect the negative battery cable..
2. Remove the front map light..
3. Verify that the continuity between the sunroof switch terminals is as indicated
in the table.
If not as indicated in the table, replace the sunroof switch.
...
Front Body Control Module (Fbcm) Inspection
1. Remove the fuse box cover..
2. Remove the front body control module (FBCM) from the fuse box..
3. Verify that the voltages of each of the terminals are as indicated in the
Terminal Voltage Table (Reference).
If the voltage is not as indicated in the table, inspect the parts under
...
Rear Drive Shaft
Purpose, Function
Engine noise and vibration have been reduced due to adoption of a bell joint
on the wheel side of the constant velocity joint.
A low noise and vibration double offset joint with low slide resistance has
been adopted for the differential side of the constant v ...
