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:
Air Fuel Ratio (A/F) Sensor Heater Control
Outline
Based on the control of the A/F sensor heater, a stabilized oxygen concentration
is detected even at low exhaust temperatures, and feedback control of fuel injection
even at cold engine start is made possible for improved cold temperature exhaust
emission performance.
...
Refrigerant System Service Cautions
Handling Insufficient Refrigerant Level
If an insufficient refrigerant level is detected at troubleshooting, do
not charge (add) the refrigerant. Because an accurate amount of refrigerant
cannot be determined from the pressure indicated on the manifold gauge, never
charge the refrige ...
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.
...
