Mazda CX-5 Service & Repair Manual: Low Fuel Warning Light
Purpose
-
The low fuel warning light warns the driver that the remaining fuel level is low.
Function
-
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.
-
Fuel gauge sender unit voltage signal sent from rear body control module (RBCM)
-
Fuel injection amount signal, vehicle speed signal sent from PCM
Construction
-
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.
-
The low fuel warning light is set in the instrument cluster.
Operation
-
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.
-
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}.
-
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
-
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:
Oil Filter Replacement
WARNING:
Hot engines and engine oil can cause severe burns. Turn off the engine and
wait until it and the engine oil have cooled.
A vehicle that is lifted but not securely supported on safety stands is dangerous.
It can slip or fall, causing death or serious injury. Never work ...
Taillight Bulb Removal/Installation
1. Disconnect the negative battery cable..
2. Insert a tape-wrapped flathead screwdriver into the service hole in the position
shown in the figure.
3. Move the flathead screwdriver in the direction of the arrow (1) shown in the
figure, pull out the service hole cover from the liftgate, a ...
Fog Lights
Use this switch to turn on the fog lights.
The fog lights will improve visibility at night and during foggy conditions.
To turn the fog lights on, rotate the fog light switch to the
position.
The headlight switch must be in the
position before turning on the fog lights.
To turn the fog lig ...
