Mazda CX-5 Service & Repair Manual: Low Fuel Warning Light
Purpose
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The low fuel warning light warns the driver that the remaining fuel level is low.
Function
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The instrument cluster calculates the fuel quantity based on the following CAN signals, and if a remaining fuel amount of approx. 10 L {2.6 US gal, 2.2 Imp gal} (fuel gauge displays remaining two segments) is detected, the low fuel warning light illuminates.
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Fuel gauge sender unit voltage signal sent from rear body control module (RBCM)
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Fuel injection amount signal, vehicle speed signal sent from PCM
Construction
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The instrument cluster microcomputer controls the low fuel warning light illumination on/off based on the remaining fuel amount calculation that is calculated by the instrument cluster.
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The low fuel warning light is set in the instrument cluster.
Operation
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When the ignition is switched ON (engine off or on) the instrument cluster receives (1) the fuel gauge sender unit voltage signal from the rear body control module (RBCM), and the fuel injection amount signal from the PCM.
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The instrument cluster turns the transistor on (2) if the calculated remaining fuel amount based on each signal is approx. 10 L {2.6 US gal, 2.2 Imp gal}.
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When the transistor turns on, a ground circuit with the low fuel warning light is established and the low fuel warning light illuminates (3).
Fail-safe
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Function not equipped.
High Pressure Fuel Pump
Purpose, Function
Applies pressure to fuel sent from the fuel pump equipped on the fuel tank,
and then pumps it to the fuel delivery pipe.
Fuel is sectioned and pumped by the up and ...
No.27 Fuel Refill Concerns
27
FUEL REFILL CONCERNS
DESCRIPTION
Fuel tank does not fill smoothly.
POSSIBLE CAUSE
...
Other materials:
Rear Crossmember Removal/Installation [Awd]
WARNING:
Verify that the crossmember is securely supported by a jack. If the rear
crossmember falls off, it can cause serious injury or death, and damage to the
vehicle.
CAUTION:
Performing the following procedures without first removing the rear ABS wheel-speed
sensor ...
Passenger Side Air Bag Module [Standard Deployment Control System]
Purpose
When the passenger-side air bag module receives an impact from a frontal
or frontal offset collision, the operation (deployment) of the air bag mediates
the impact to the head and face of the front passenger.
Function
When the passenger-side air bag module receives ...
Windshield Installation
WARNING:
Using a utility knife with bare hands can cause injury. Always wear gloves
when using a utility knife.
CAUTION:
If a door is opened or closed when all the window glass is closed, the resulting
change in air pressure could cause the sealant to crack preventing the ...
