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:
Tcs Off Switch Inspection
1. Remove the TCS OFF switch..
2. Verify that the resistance between the TCS OFF switch terminals B and C is
as indicated in the table.
If not as indicated in the table, replace the TCS OFF switch.
TCS OFF switch specification
Terminal
Test con ...
Rain Sensor
Outline
The rain sensor detects the amount of rainfall and calculates the wiper operation
speed, and outputs a windshield wiper control signal to the front body control
module (FBCM) to perform automatic wiper operation (auto wiper system) according
to the amount of rainfall.
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Light Switch Inspection
Light Switch
1. Disconnect the negative battery cable..
2. Remove the column cover..
3. Remove the light switch..
4. Verify that the continuity between the light switch terminals is as indicated
in the table.
Vehicles without auto light system
Vehicles with auto light system
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