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:
Barometric Pressure (Baro) Sensor
Purpose/Function
Detects the BARO as basic information for mainly determining the fuel injection
amount.
Detects the BARO and inputs it to the PCM as a BARO signal.
Construction
Built into the PCM.
A piezoelectric element has been adopted for detecting th ...
Tcs/DSC Indicator Light
Purpose/Function
The TCS/DSC indicator light, built into the instrument cluster, informs the
driver of the following vehicle conditions.
TCS is operating. (Drive wheel is slipping.)
DSC is operating. (Vehicle side-slip condition.)
Roll over mitigation (RO ...
Front Wheel Hub Bolt Replacement
1. Remove the brake calliper component from the steering knuckle and suspend
it out of the way using a cable.
2. Remove the disc plate.
3. Remove the wheel hub bolt using the SST as shown in the figure.
4. Place a new wheel hub bolt in the wheel hub.
5. Install the wheel hub by placi ...
