Mazda CX-5 Service & Repair Manual: Panel Light
Purpose
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The panel light adjusts the instrument cluster and steering switch illumination brightness.
Function
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The instrument cluster adjusts the brightness of the following illumination lights when a TNS illumination signal sent via CAN transmission from the front body control module (FBCM) is received.
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Instrument cluster
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Climate control unit
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Steering switch
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Cluster switch
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Hazard warning switch
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Selector illumination
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Audio unit
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Clock (with manual A/C)
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The instrument cluster changes the brightness of the illumination lights according to the rotation signal of the panel light control switch.
Construction
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The panel light control switch 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) the TNS illumination signal from the front body control module (FBCM).
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The instrument cluster performs the following controls when it receives the TNS illumination signal.
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Changes the brightness of the instrument panel illumination.
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Outputs a panel light signal via CAN signal to the climate control unit (with auto A/C)/clock (with manual A/C).
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Turns on the panel light circuit transistor.
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When the transistor turns on, a ground circuit with the panel light is established and the panel light illuminates.
Panel light control switch operation
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When the ignition is switched ON (engine off or on), the instrument cluster receives (1) the TNS illumination signal from the front body control module (FBCM).
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The instrument cluster changes the brightness of the panel light according to the rotation angle when it receives a panel light control switch rotation signal while receiving the TNS illumination signal.
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The instrument cluster outputs a panel light signal to related units.
Fail-safe
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Function not equipped.
PID/Data Monitor Inspection [Instrument Cluster]
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization
screen of the M-MDS.
a. Select “DataLogger”.
b. Select “Modules ...
Gauges
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Other materials:
Auto Light System
Outline
The auto light system automatically turns the TNS and headlights on/off according
to the illumination level above and in front of the vehicle.
The auto light system is controlled by the front body control module (FBCM).
The front body control module (FBCM) performs ...
Shift Lock System [Fw6 A EL, Fw6 Ax EL]
Purpose, Function
The shift-lock system operates when the ignition is switched to ON and the
brake pedal is not depressed, and inhibits the selector lever from being shifted
from the P position to other positions.
If the shift-lock cannot be released by the normal operation, it ...
Cruise Control System
Outline
Enables driving at a constant speed by setting the vehicle speed with the
cruise control switch instead of operating the accelerator pedal.
The PCM controls the throttle valve actuator to maintain the vehicle at a
constant speed.
Component and function
...
