Overhead control panel control unit, task - GF82.20-P-4101-02A

The overhead control panel (OCP) control unit (N70) has the following tasks:

Gateway for following components to Controller Area Network bus Class B (interior) (CAN B) 

• Automatic light switch daylight sensor (B32/1) up to 31.5.03
• In-car temperature sensor (N70b1) up to 31.5.02 and as from 1.6.05
• Telephone transmitter/receiver and TELE AID, D2B (A35/17) (for code (855) TELE AID)
• Rain sensor (B38) up to 31.5.03 (for code (345) Rain sensor)
• Rain/light sensor (B38/2) as from 1.6.03 (for code (345) Rain sensor)
• Inside rearview mirror unit (A67) (for code (249) Automatically dimming inside rearview mirror and outside mirror (driver))
• Garage door opener transmitter unit (A67n2) (for code (231) Garage door opener (in diagnostic mode only))
• Left interior motion sensor transmitter and receiver (A26/4) (for model 203.7 and code (882) Interior monitoring (with ATA [EDW] only))
• Interior motion sensor transmitter and receiver (A26/14) (for models 203.0/2 and code (882) Interior monitoring (with ATA [EDW] only))

Voltage supply for following components 

• In-car temperature sensor fan motor (N70m1) up to 31.5.02 and as from 1.6.05
• Rear dome lamp (E15/3) (for models 203.0/2 without code (220) Parktronic system (PTS))
• PTS warning display, rear dome lamp (A44/3) (for models 203.0/2 and code (220) Parktronic system (PTS))
• Inside rearview mirror unit (A67) (for code (249) Automatically dimming inside rearview mirror and outside mirror (driver))
• Garage door opener transmitter unit (A67n2) (for code (231) Garage door opener)
• Telephone transmitter/receiver and TELE AID, D2B (A35/17) (for code (855) TELE AID)
• Left vanity mirror illumination (E14/1) and right vanity mirror illumination (E14/2) (for code (543) Sun visors with illuminated mirror)
• Left interior motion sensor transmitter and receiver (A26/4) (for model 203.7 and code (882) Interior monitoring (with ATA [EDW] only))
• Interior motion sensor transmitter and receiver (A26/14) (for models 203.0/2 and code (882) Interior monitoring (with ATA [EDW] only))
• Roof system drive unit (M12) and roller sun blind drive unit (M12/5) (for model 203.7 and code (413) Panoramic sliding roof)
• Roof system drive unit (M12) (for models 203.0/2 and code (414) Power glass tilting/sliding roof)

Actuation of interior lights (IBL) and following components 

• Surround lamp (A67e3)
• front dome lamp (N70e1)
• left front reading lamp (N70e2)
• right front reading lamp (N70e3)
• Rear dome lamp (E15/3) (for model 203.7)
• Left reading lamp (E15/3e1), right reading lamp (E15/3e2) and dome lamp (E15/3e3) (for models 203.0/2 without code (220) Parktronic system (PTS))
• Reading lamp 1 (A44/3e1), reading lamp 2 (A44/3e2) and dome lamp (A44/3e3) (for models 203.0/2 and code (220) Parktronic system (PTS))
• Automatic dimming mirror (A67h3) (for code (249) Automatically dimming inside rearview mirror and outside mirror (driver))
• Roof system drive unit (M12) and roller sun blind drive unit (M12/5) (for model 203.7 and code (413) Panoramic sliding roof)
• Roof system drive unit (M12) (for models 203.0/2 and code (414) Power glass tilting/sliding roof)

Reading in of integrated switches: 

• rear dome lamp switch (N70s2)
• Dome lamp switch (N70s3)
• Left front reading lamp switch (N70s6)
• Right front reading lamp switch (N70s7)
• Roof switch (N70s1) (for model 203.7 and code (413) Panoramic sliding roof or for code 203.0/2 and code (414) Power glass tilting/ sliding roof)

For vehicles the overhead control panel control unit (N70) has an SOS push-button switch (S93/3) installed in it. Actuation is however carried out by the emergency call system control unit (N123/4).

Reading and evaluating sensors 

• Automatic light switch daylight sensor (B32/1) up to 31.5.03
• In-car temperature sensor (N70b1) up to 31.5.02 and as from 1.6.05
• Rain sensor (B38) up to 31.5.03 (for code (345) Rain sensor)
• Rain/light sensor (B38/2) as from 1.6.03 (for code (345) Rain sensor)
• Automatic dimming interior rearview mirror sensor, forward (A67h1) and automatic dimming interior rearview mirror sensor, back (A67h2) (for code (249) Automatically dimming inside rearview mirror and outside mirror (driver))
• Hall sensor 1 (M12b1), Hall sensor 2 (M12b2), Roller sun blind Hall sensor 1 (M12/5b1) and Roller sun blind Hall sensor 2 (M12/5b2) (for model 203.7 and code (413) Panoramic sliding roof)
• Hall sensor 1 (M12b1) and Hall sensor 2 (M12b2) (for models 203.0/2 and code (414) Power glass tilting/sliding roof)