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:
Refrigerant Line
Purpose
The system piping connects each related part of the refrigerant system.
Construction
Block-type piping has been adopted to the pipe connection, improving the
efficiency of piping related servicing.
The pipes in the piping system consist of the following parts.
...
Air Fuel Ratio (A/F) Sensor
Purpose/Function
Detects the oxygen concentration (all-range air/fuel ratio) in the exhaust
gas as basic information for mainly determining the fuel injection amount.
Detects the oxygen concentration (all-range air/fuel ratio) in the exhaust
gas and inputs it to the PCM as an ox ...
Camshaft Position (CMP) Sensor Inspection
Intake CMP Sensor
Visual inspection
CAUTION:
When replacing the CMP sensor, make sure there is no foreign material on
it such as metal shavings. If it is installed with foreign material, the sensor
output signal will malfunction resulting from fluctuation in magnetic flux and
caus ...
