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Mercedes Benz 230 OverHead Control Panel Control Unit

Location
Location
Overall network
Overall network
Overhead control panel control unit
· 1 Door contact ON and OFF switch
· 2 Dome lamp ON and OFF switch
· 3 Front dome lamp
· 4 Left reading lamp switch
· 5 Right reading lamp switch
· 6 Left reading lamp
· 7 Right reading lamp
Task
The overhead control panel control unit reads sensors and switches and controls their functions. Depending on the requests received, consumers are switched or supplied with voltage and signals are transmitted or received via CAN-B.
Control
• Master control unit for interior illumination
• Exit lamps
• Footwell lamps
• Warning lamps
Special functions
• Windshield wiper startup suppression
• OFF delay function of interior lights
• Dimming function of inside rearview mirror and driver-side outside mirror (code 249)
Note
The special functions are not necessarily controlled by the overhead control panel, they may just be indirectly associated with the overhead control panel.
Switching consumers
• Inside rearview mirror unit
Voltage supply
• Inside rearview mirror unit
• Automatic light switch daylight sensor (up to code 805)
• Rain sensor (up to code 805)
• Rain/light sensor (as of code 805)
• Left vanity mirror illumination
• Right vanity mirror illumination
Reading integrated switches
• Door contact ON and OFF switch
• Dome lamp ON and OFF switch
• Left reading lamp switch
• Right reading lamp switch
Reading external switches
• Vario roof "closed" limit switch (right pin)
Reading sensors and signals Sensors
• Automatic light switch daylight sensor (up to code 805)
• Rain sensor (up to code 805)
• Rain/light sensor (as of code 805)
• In-car temperature sensor
• Automatic dimming interior rearview mirror sensor, forward (code 249)
• Automatic dimming interior rearview mirror sensor, back (code 249)
Signals
• Right antenna amplifier module (central locking radio receiver)
Interface to CAN-B (via OCP)
• Automatic light switch daylight sensor (up to code 805)
• Rain sensor (up to code 805)
• Rain/light sensor (as of code 805)
• Inside rearview mirror unit
• Right antenna amplifier module (central locking radio receiver)
CAN signals
The overhead control panel control unit is a CAN-B subscriber in the overall network.
Door contact ON and OFF switch (1)
Sliding the door contact ON and OFF switch (1) to the left activates the automatic control for the interior illumination.
The interior illumination is automatically switched on in dark conditions when
• The vehicle is unlocked
• The transmitter key is removed from the ignition lock
• A door is opened
The interior illumination switches back off after a delay.
Sliding the door contact ON and OFF switch (1) to the right switches off the automatic control for the interior illumination.
Dome lamp ON and OFF switch (2) and Front dome lamp (3)
Pressing the dome lamp ON and OFF switch (2) switches the left and right front dome lamp (3) in the overhead control panel on or off.
Left reading lamp switch (4) and Left reading lamp (6)
Pressing the left reading lamp switch (4) switches the left reading lamp (6) on the underside of the inside rearview mirror unit on or off.
Right reading lamp switch (5) and Right reading lamp (7)
Pressing the right reading lamp switch (5) switches the right reading lamp (7) on the underside of the inside rearview mirror unit on or off.
Overall network
· 3 Power supply to vanity mirror illumination
· 4 Vanity mirror illumination ON/OFF
· 6 Reading lamps ON/OFF
· 7 Rain detected
· 8 Darkness detected
· 9 Dimming information
· 10 Reverse gear engaged or interior lights switched on
· 11 Mirror position (up to code 805)
· 17 Power supply to rain sensor / automatic light switch daylight sensor (light sensor) / rain/light sensor
· 18 Central locking (ZV) open/close request
· 19 Vario roof closed
· 26 Power supply to inside rearview mirror unit
· A2/65 Right antenna amplifier module (central locking radio receiver)
· A67 Inside rearview mirror unit
· A67e1 Left reading lamp
· A67e2 Right reading lamp
· A67h1 Automatic dimming interior rearview mirror sensor, forward (code 249)
· A67h2 Automatic dimming interior rearview mirror sensor, back (code 249)
· B32/1 Automatic light switch daylight sensor (up to code 805)
· B38 Rain sensor (up to code 805)
· B38/2 Rain/light sensor (as of code 805)
· E14/6 Left vanity mirror illumination
· E14/7 Right vanity mirror illumination
· N70 Overhead control panel control unit
· S69/1 Vario roof "closed" limit switch (right pin)
· S101 Left vanity mirror illumination switch
· S102 Right vanity mirror illumination switch
· CAN-B Controller Area Network bus class B (interior compartment)

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Description
In this section we add some useful information about some Mercedes Benz 30 OverHead Control Panel System and it features.
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