Mazda CX-5 Service & Repair Manual: Auto Dimming Mirror
Purpose
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The automatic glare prevention rearview mirror prevents the driver from being affected by light from vehicles at the rear.
Structural view
System wiring diagram
Function
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The automatic glare prevention rearview mirror detects the level of the surrounding light and glare from vehicles at the rear using the light sensor.
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The automatic glare prevention rearview mirror combines the level of the surrounding light and the glare from vehicles at the rear and changes the reflection rate of the mirror between 10% and 70%.
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When the automatic glare prevention rearview mirror receives a reverse signal from the rear body control module (RBCM), the reflection rate of the mirror is fixed at 70% or more.
Operation
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When the automatic glare prevention rearview mirror switch is turned on, the mirror switches to automatic glare prevention mode.
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While in automatic glare prevention mode, the light sensor detects the level of surrounding light and the glare from vehicles at the rear.(1)
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The automatic glare prevention rearview mirror changes the voltage applied to the mirror according to the level of the surrounding light and the glare from vehicles at the rear.(2)
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The mirror changes the reflection rate between 10% and 70% according to the voltage that is applied.
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However, if it receives a reverse signal from the rear body control module (RBCM) (3), the reflection rate of the mirror is fixed at 70% or more.
Fail-safe
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Function not equipped
Mirrors
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Auto Dimming Mirror Inspection
1. Measure the voltage at each terminal.
If the voltage is not as specified in the Terminal Voltage Table (Reference),
inspect the parts under “Inspection item (s)” and related wiring h ...
Other materials:
Rear Combination Light
Purpose
The rear combination lights are used to signal the following conditions to
vehicles/people at the rear.
Rear turn lights: Signals a left or right turn of the vehicle.
Brake lights: Signals a vehicle stop.
Taillights: Signals the presence of the ve ...
ABS Wheel Speed Sensor And ABS Sensor Rotor
Purpose/Function
The ABS wheel-speed sensor and ABS sensor rotor detect the rotation condition
of each wheel and transmit this information to the DSC HU/CM.
The signal from the ABS wheel-speed sensor is the primary signal that the
DSC HU/CM uses when carrying out control.
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Vanity Mirror Illumination Inspection
1. Disconnect the negative battery cable..
2. Remove the sunvisor..
3. Verify that the continuity between the vanity mirror illumination terminals
is as indicated in the table.
If not as indicated in the table, replace the sunvisor.
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