Hyundai Sonata: Description and Operation
Description
The ECM (Electro Chromatic inside rear view Mirror) is for dimming the
reflecting light from a vehicle behind at night, Preventing glare from the light.
The forward facing sensor detects brightness of the surroundings, while the
rearward looking sensor detects the strength of the reflecting light and adjusts
the reflexibility of the mirror in the range of 7~85%. But, when the reverse
gear is engaged, it stops functioning.
| 1. |
The forward facing sensor sees if the brightness of the surroundings
is low enough for the mirror to operate its function.
|
| 2. |
The rearward looking sensor detects glaring of the reflecting
light from a vehicle behind.
|
| 3. |
The ECM is darkened to the level as determined by the rearward
looking sensor. When the glaring is no longer detected, the mirror stops
functioning.
1. LED indicator
2. ON/OFF Switch
3. Rearward looking sensor
4. Forward looking sensor
|
Components and Components Location
Components
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Repair procedures
Inspection
Check it by the procedure below to see if the function of the ECM is normal.
1.
Turn the ignition key to the "ON" position.
2.
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See also:
Fuel Pressure Control Valve Troubleshooting
Signal Waveform
...
Stop Lamp Switch Schematic Diagrams
Schematic Diagram
System Circuit Diagram
Terminal function
TeminalDescription1IGN12Engine Control Module (ECM)3B+4Stop Lmap
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AVN Remote Controller (Sonata Sports) Schematic Diagrams
Circuit Diagram
...