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.
Engine Oil Level Inspection
1. Position the vehicle on level ground.
2. Warm up the engine.
3. Stop the engine and allow at least 5 min before continuing.
4. Remove the dipstick, wipe it cleanly, and reinstall it fully.
...
Engine Oil 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 ...
Other materials:
Refrigerant Pressure Sensor Removal/Installation [Full Auto Air Conditioner]
1. Disconnect the negative battery cable..
2. Discharge the refrigerant..
3. Disconnect the refrigerant pressure sensor connector.
CAUTION:
If moisture or foreign material enters the refrigeration cycle, cooling ability
will be lowered and abnormal noise will occur. Always immediate ...
Engine Coolant Temperature (ECT) Sensor
Purpose/Function
Detects the ECT as basic information for mainly determining the fuel injection
amount.
Detects the ECT and inputs it to the PCM as an ECT signal.
The ECT sensor No.2 is only used for OBD.
Construction
ECT sensor No.1
Installed to the water out ...
Dynamic Stability Control (DSC)
Outline
Electrical brake assist control has been adopted, improving safety.
The DSC HU/CM, integrating both the hydraulic unit (HU) and control module
(CM), has been adopted, resulting in a size and weight reduction.
An enhanced malfunction diagnosis system, used with the M ...
