Mazda CX-5 Service & Repair Manual: Engine Oil Pressure Warning Light
Purpose
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The engine oil pressure warning light warns the driver that the engine oil level is insufficient.
Function
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When the instrument cluster receives the engine oil pressure warning light request signal sent from the PCM via the CAN signal, it illuminates the engine oil pressure warning light.
Construction
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The instrument cluster controls illumination on/off of the engine oil pressure warning light using the instrument cluster microcomputer based on the engine oil pressure warning light request signal from the PCM.
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The engine oil pressure warning light is set in the instrument cluster.
Operation
1. The instrument cluster receives (1) the engine oil pressure warning light request signal from the PCM.
2. The instrument cluster microcomputer turns the transistor on (2) based on the engine oil pressure warning light request signal.
3. When the transistor turns on, a ground circuit with the engine oil pressure warning light is established and the engine oil pressure warning light illuminates (3).
Fail-safe
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Function not equipped.
Door Ajar Warning Light
Purpose
The door-ajar warning light notifies the driver that any door or the liftgate
is open.
Function
When the instrument cluster receives any of the following signals sent fr ...
Front Fog Lights Indicator Light
Purpose
Notifies the user that the front fog lights are illuminated.
Function
Illuminates when the front fog light illumination conditions are met.
Construction
Displa ...
Other materials:
Catch Tank
Purpose, Function
Suppresses pulsation occurring before evaporative gas is inducted into the
intake manifold.
Construction
The catch tank is installed in the engine compartment.
Operation
When evaporative gas flows from the charcoal canister to the purge sol ...
Expansion Valve
Purpose
The expansion valve atomizes liquid refrigerant to facilitate cooling of
the evaporator.
Function
The expansion valve reduces the pressure of liquid refrigerant rapidly to
facilitate vaporization of the atomized refrigerant at the evaporator, and adjusts
the refr ...
High Mount Brake Light
Purpose
The high-mount brake light signals vehicles to the rear that the vehicle
is stopped.
Function
The high-mount brake light illuminates in conjunction with the operation
of the brake light switch.
Construction
The high-mount brake light is positioned on th ...
