Model 164/251
Rear SAM control unit
Rear SAM control unit (N10/8) shown on model 164
P54.21-2597-00
Location
Removal/installation
The rear SAM control unit (N10/8) is located on the
wheelhouse in the right side of the trunk.
The work instructions are documented in WIS:
f54.21-P-1269GZ Model 164.1
f54.21-P-1269RT Model 251
Tasks
Control
Workshop Information System
(WIS)
Exterior lights function, master control unit for the
turn signal functions
Model 164.1
n82.10-P-0999GZ
Model 251
nCurrently not documented
Interior lights (IBL)
Model 164.1
n82.20-P-0998GZ
Model 251
nCurrently not documented
Wiper system (WSA)
12
Model 164.1
n82.30-P-0998GZ
Model 251
nCurrently not documented
b Overview of SAM Control Units/Current Passenger Car Model Series 2005
– This printout will not be recorded by the update service. Status: 08 / 2005 –
Control
Workshop Information System
(WIS)
Heated rear window (HHS)
Model 164.1
n67.29-P-0998GZ
Model 251
nCurrently not documented
Model 164/251
Rear SAM control unit
Central locking (CL [ZV])
Model 164.1
n80.20-P-0996GZ
Model 251
nCurrently not documented
Anti-theft alarm system (ATA [EDW])
Model 164.1
n80.50-P-0999GZ with code (551) Anti-theft
alarm system (ATA [EDW])
Model 251
nCurrently not documented
Power windows (EFH) (pop-out windows only)
nCurrently not documented
Model 251
Switching of consumers
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Left taillamp (complete)
Right taillamp (complete)
License plate illumination
Center high-mounted stop lamp
Trailer illumination (with code 550)
Left/right rear door inside handle illumination
Left/right rear door exit lamp
Load compartment illumination
Right rear door central locking motor
Rear-end door actuation central locking motor
Fuel filler flap central locking motor
• Rear door locking unit
• Alarm signal horn I
• Alarm signal horn with additional battery via
interface (with code 551)
• Lumbar pump (with code 404 or 405)
• Rear-end door ambient lamp (model 251)
Overview of SAM Control Units/Current Passenger Car Model Series 2005 b
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Model 164/251
Rear SAM control unit
Scanning of switches, pickups and sensors
Switching the following relays
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•
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•
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Circuit 15
Circuit 54 (stop lamp)
Fuel tank sensor 1
Fuel tank sensor 2
Driver door actuation central locking motor, rotary
tumbler
Front passenger door actuation central locking
motor, rotary tumbler
Left rear door central locking motor, rotary tumbler
Right rear door central locking motor, rotary
tumbler
Rear door locking unit
TAG rear-end door lock contact switch
Signal radio LF radio antenna interference filter
ATA [EDW] hood switch (with code 551)
Automatic loading floor switch
(model 164 with code 942)
CL [ZV] radio receiver
Alarm signal horn with additional battery via
interface (with code 551)
Circuit 15R relay
Circuit 15Rx relay (power outlets)
Heated rear window relay
Rear wiper relay
Trailer circuit 15R relay
Deluxe seat relay
Electric loading floor retract relay
(model 164 with code 942)
• Electric loading floor extend relay
(model 164 with code 942)
CAN connections
• CAN link between rear SAM control unit and
cockpit CAN-B voltage distributor (plug G)
• CAN: Overhead control panel control unit (plug G)
CAN signals
The rear SAM control unit (N10/8) is a device on the
CAN-B in the overall network.
n00.19-P-0999GZ Model 164.1
except code (498) Japan version
nCurrently not documented (model 251)
i Note
In vehicles with code 551 the towing sensor (ATA
inclination sensor) for the ATA function is integrated in the rear SAM control unit (N10/8).
In vehicles with trailer hitch with code 550 the
trailer recognition control unit is integrated in the
rear SAM control unit (N10/8).
Wiring diagrams with pin/connector assignments
Current information on the wiring diagram and on the
connector assignments can be found in the documentation in WIS.
Fuse and relay assignments
Current information on the assignments can be found
in the documentation in WIS.
Voltage supply for the following
control units
• No voltage supply for control units
14
b Overview of SAM Control Units/Current Passenger Car Model Series 2005
– This printout will not be recorded by the update service. Status: 08 / 2005 –
Model 164/251
Rear SAM control unit
P54.21-2598-00
Connector assignment of rear SAM control unit (N10/8)
Circuits and assignments
Workshop Information System
(WIS)
Wiring diagrams and pin/connector assignments,
control unit N10/8
r54.21-P-2103MAA Sheet 1
Model 164
r54.21-P-2103MAB Sheet 2
r54.21-P-2103RAA Sheet 1
Model 251
r54.21-P-2103RAB Sheet 2
Fuse and relay assignments
Model 164.1/8
n54.15-P-0800GZ
Model 251
n54.15-P-1269RT
Overview of SAM Control Units/Current Passenger Car Model Series 2005 b
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15