Mazda CX-5 Service & Repair Manual: Check Fuel Cap Warning Light
Purpose/Function
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The check fuel cap warning light is built into the instrument cluster.
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If the PCM detects that the fuel cap is open, the light illuminates to warn the driver that the fuel cap is open.
Construction
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Built into the instrument cluster.(See INSTRUMENT CLUSTER.)
Operation
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The illumination condition of the check fuel cap warning light is as follows:
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DTC P0457:00 is stored (PCM detects that fuel cap is open)
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Check fuel cap warning light illumination condition
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The PCM sends a check fuel cap warning light illumination request to the instrument cluster via CAN communication.
Before Service Precaution
WARNING:
Fuel vapor is hazardous. It can very easily ignite, causing serious injury
and damage. Always keep sparks and flames away from fuel.
Fuel line spills and leakage from the p ...
Direct Fuel Injection System
Purpose, Outline
Engine output has been improved through the direct injection of fuel into
the combustion chamber.
High response can be because there is no time lag from when the fue ...
Other materials:
Side Air Bag Module [Standard Deployment Control System]
Purpose
When a side air bag module receives an impact from a lateral collision, the
operation (deployment) of the air bag mediates the impact to the chest, stomach,
and waist of the driver and front passenger.
Function
When a side air bag module receives an impact from a la ...
Air Bag System Service Warnings [Standard Deployment Control System]
Air Bag Module Inspection
Inspecting an air bag module using a tester can operate (deploy) the air
bag module, which may cause serious injury. Do not use a tester to inspect an
air bag module. Always use the on-board diagnostic function to diagnose the
air bag module for malfunctions ...
Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The PCV valve is open/closed by the intake manifold vacuum.
Construction
The PCV valve is installed to the oil separator.
The PCV valve consists of a spring and valve.
...