Mazda CX-5 Service & Repair Manual: Master Warning Light
Purpose
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The master warning light warns the driver that any of the following malfunctions is occurring.
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Brake switch malfunction
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Engine oil solenoid valve malfunction
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Automatic configuration malfunction
Function
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The instrument cluster illuminates the master warning light based on the following CAN signals:
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Brake switch No.1 error signal, brake switch No.2 error signal, engine oil solenoid valve error signal, and automatic configuration error signal sent from the PCM
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The instrument cluster flashes the master warning light based on the master warning light flash request signal sent from the PCM as a CAN signal.
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The master warning light flashing pattern is as indicated in the figure.
Construction
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The instrument cluster microcomputer controls the illumination/flashing/turning off of the master warning light based on each error signal sent from the PCM.
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The master warning light is set in the instrument cluster.
Operation
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When the ignition is switched ON (engine off or on), the instrument cluster receives (1) each error signal or a master warning light flash request signal from the PCM.
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The instrument cluster turns the transistor on (2) intermittently for flashing and continuously for illumination based on each signal.
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The master warning light flashes (3) when the transistor is turned on intermittently, and it illuminates (3) when the transistor is turned on continuously.
Fail-safe
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Function not equipped.
Low Fuel Warning Light
Purpose
The low fuel warning light warns the driver that the remaining fuel level
is low.
Function
The instrument cluster calculates the fuel quantity based on the following
...
Panel Light Control Indicator Alarm
Purpose
The panel light control indicator alarm notifies the driver that the panel
light brightness is either at maximum or minimum.
Function
If the panel light control switch i ...
Other materials:
Rear Drive Shaft Inspection
1. Inspect each connecting part for looseness.
Tighten or replace parts if necessary.
2. Inspect the dust boot on the drive shaft for cracks, damage, leaking grease,
and looseness in the boot band.
3. Inspect the drive shaft for bends, cracks, and wear in the joints or splines. ...
Filament Repair
1. Clean the filament using isopropyl alcohol.
2. Attach tape to both sides of the filament.
3. Using a small brush or marking pen, apply silver paint.
4. After 2—3 min, carefully remove the tape without damaging the applied
area.
CAUTION:
Do not operate the rear window defro ...
Climate Control Unit Inspection [Full Auto Air Conditioner]
1. Remove the climate control unit with the connector connected..
2. Switch the ignition ON (engine off or on).
3. Connect the negative (-) lead of the tester to body ground.
4. By inserting the positive (+) lead of the tester into each climate control
unit terminal, measure the voltage acco ...
