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Function schematic for electrical rear window heater - PE67.29-P-2051-97FAB

Code: Designation: Position:
1 Circuit 15, status 8E
2 Vehicle speed, signal 9E
3 Outside temperature, signal 7J
3 Outside temperature, signal 8G
4 Interior temperature sensor, signal 7E
5 Rear window heater button, status 3D
5 Rear window heater button, status 6E
6 Rear window heater status indication, signal 4E
6 Rear window heater status indication, signal 3C
7 Rear window heater, actuation 11D
8 Engine control, request 9J
8 Engine control, request 8G
9 PRE-SAFE®, status 6J
9 PRE-SAFE®, status 8H
A1 Instrument cluster 13E
A8/1 Transmitter key 9C
B14 Outside temperature sensor 6G
CAN B Interior CAN 8D
CAN B Interior CAN 8H
CAN B Interior CAN 5F
CAN B Interior CAN 10F
CAN E Chassis CAN 5K
CAN E Chassis CAN 11K
Code 299 PRE-SAFE® 4J
Code 474 Diesel particulate filter 9J
N10/1 Front SAM control unit with fuse and relay module 8J
N10/2 Rear SAM control unit with fuse and relay module 8E
N22/7 Automatic air conditioning control and operating unit 2E
N22/7s1 Rear window heater button 2C
N3/9 CDI control unit 14J
N30/4 Electronic Stability Program control unit 2J
N73 Electronic ignition switch control unit 8A
R1 Rear window heater 11C
U113 Valid for 2-zone THERMATIC 1E
U114 Valid for 3-zone THERMOTRONIC 1E
U74 Valid for diesel engines 12J
Fig 1: Electrical Rear Window Heater Function Diagram
G07531044Courtesy of MERCEDES-BENZ USA