SMART Series 451 Service Manual page 59

SN_Typ 451_us.book Seite 58 Freitag, 30. November 2007 1:56 13
Transmission control
The following components are actuated directly by
the automated manual transmission control unit:
• Transmission motor 1 (M17/3)
• Transmission motor 2 (M17/4)
• Clutch motor (M18)
Electronic selector lever module control unit (N15/5)
Location
The electronic selector lever module control unit is
located in the center console.
Task
The electronic selector lever module control unit
records the shift requests of the driver.
The shift positions "N", "R", "+" and "-" are
detected by Hall sensors in the electronic selector
lever module control unit and are read and evalu-
ated by the electronics in the electronic selector
lever module control unit. The signals corre-
sponding to the shift lever positions are trans-
ferred to the automated manual transmission
control unit.
The release button on the selector lever must be
actuated in order to move the selector lever to the
following positions:
• From P to R, N or D
• From R to P
• From N to R or P
The transmitter key can only be removed in position
0 if the selector lever is in position P.
When the transmitter key is removed, the selector
lever is locked in position P.
58 Introduction of the smart fortwo, Model Series 451
Communication via CAN takes place with the
following components:
• Instrument cluster (A1)
• ME-SFI [ME] control unit (N3/10)
• SAM control unit (N10/10)
• Electronic selector lever module control unit
(N15/5)
• ESP control unit (N47-5)
1 Unlock button
N15/5 Electronic selector lever module control unit
P Park
R Reverse gear
N Neutral position
D Automatic mode
M Manual mode
+ Upshift
- Downshift
i Note
When reverse gear is requested, the backup light
is actuated directly by the electronic selector
lever module control unit.
P26.60-2375-00