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Home >> Mercedes Benz >> 2021 >> A220 Base >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Seats, Bunks, Restraint Systems - 177 Chassis (2 Of 2) >> Wiring Diagrams >> Trigger Preventive Occupant Protection System, Function Schematic >> (Trigger Preventive Occupant Protection System, Function Schematic - PE91.40-P-2500-97B)
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(Trigger Preventive Occupant Protection System, Function Schematic - PE91.40-P-2500-97B)

Model 167 

Model 293 

Code: Designation: Position:
1 Driver assistance system, status 20A
1 Driver assistance system, status 20C
1 Driver assistance system, status 20E
10 Belt adjustment, status 37L
11 Seat belt buckle switch, status 27J
11 Seat belt buckle switch, status 37K
11 Seat belt buckle switch, status 37D
11 Seat belt buckle switch, status 37C
12 Crash, signal 36K
13 Front passenger seat occupied recognition, status 26J
13 Front passenger seat occupied recognition, status 37C
14 PRE-SAFE®, status 27D
14 PRE-SAFE®, status 36J
14 PRE-SAFE®, status 37D
14 PRE-SAFE®, status 36C
14 PRE-SAFE®, status 45B
15 Adjust PRE-SAFE®, request 27D
15 Adjust PRE-SAFE®, request 36D
15 Adjust PRE-SAFE®, request 36C
16 PRE-SAFE® system stage, request 26D
16 PRE-SAFE® system stage, request 36J
17 PRE-SAFE® Sound, request 26D
17 PRE-SAFE® Sound, request 44B
18 Instrument cluster message, request 46K
19 Image data, signal 51K
2 Steering wheel angle, signal 20F
20 Battery thermal runaway, request 26G
20 Battery thermal runaway, request 36H
20 Battery thermal runaway, request 44F
20 Battery thermal runaway, request 53C
3 Steering wheel velocity, signal 20F
4 Engine running, signal 14G
4 Engine running, signal 37J
4 Engine running, signal 27G
4 Engine running, signal 37G
4 Engine running, signal 45F
5 Drivetrain operational, signal 37J
5 Drivetrain operational, signal 27G
5 Drivetrain operational, signal 37H
5 Drivetrain operational, signal 44F
6 Circuit 15, status 20J
7 ESP® mode, request 13H
7 ESP® mode, request 20J
8 Transmission mode, request 13H
8 Transmission mode, request 20J
9 Speed, turn rate and lateral acceleration, signal 14J
9 Speed, turn rate and lateral acceleration, signal 19J
A108 Active Brake Assist controller unit 3A
A108/1 Active Distance Assist DISTRONIC electric controller unit 2D
A26/17 Head unit 2K
A26/17 Head unit 45B
A40/16 Head unit/instrument cluster display cluster 53L
A76 Left front reversible emergency tensioning retractor 38K
A76/1 Right front reversible emergency tensioning retractor 38K
A98 Panoramic sliding sunroof control module 45F
A98/1 Sliding roof control module 45G
B92/20 Collision warning system radar sensor 3B
CAN B Interior CAN 32C
CAN B Interior CAN 32E
CAN B Interior CAN 32G
CAN B Interior CAN 32H
CAN B Interior CAN 40G
CAN B Interior CAN 32A
CAN B Interior CAN 41A
CAN B Interior CAN 50A
CAN C1 Drive train CAN 12H
CAN HMI User interface CAN 12J
CAN HMI User interface CAN 12J
CAN HMI User interface CAN 12L
CAN HMI User interface CAN 12K
CAN HMI User interface CAN 12K
CAN HMI User interface CAN 43B
CAN HMI User interface CAN 32J
CAN HMI User interface CAN 43K
CAN HMI User interface CAN 26K
CAN HMI User interface CAN 26K
CAN HMI User interface CAN 32K
CAN HMI User interface CAN 19K
CAN HMI User interface CAN 19K
CAN HMI User interface CAN 19L
CAN HMI User interface CAN 26L
CAN HMI User interface CAN 32L
CAN HMI User interface CAN 33B
Code 233 DISTRONIC PLUS 2E
Code 239 Active Distance Assist DISTRONIC 2C
Code 258 COLLISION PREVENTION ASSIST 2A
Code 275 Memory Package (driver's seat, steering column and mirrors) 37C
Code 399 Front multicontour seats with massage function 37D
Code 406 Multicontour seats in rear 37E
Code 413 Panoramic sliding sunroof 45F
Code 414 Sliding roof 45G
Code B01 48V technology 24G
Code B01 48V technology 34G
Code B01 48V technology 42F
Code B01 48V technology 51C
Code ME05 HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUGIN) 24G
Code ME05 HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUGIN) 34G
Code ME05 HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUGIN) 42F
Code ME05 HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUGIN) 51C
Flex E Chassis FlexRay 12B
Flex E Chassis FlexRay 19H
Flex E Chassis FlexRay 19B
Flex E Chassis FlexRay 19D
Flex E Chassis FlexRay 12D
Flex E Chassis FlexRay 12E
Flex E Chassis FlexRay 19E
Flex E Chassis FlexRay 19F
Flex E Chassis FlexRay 12F
Flex E Chassis FlexRay 19J
Flex E Chassis FlexRay 25D
Flex E Chassis FlexRay 23H
HSVL High-speed video link 50K
N127 Drivetrain control unit 14H
N133/1 Instrument cluster control unit 47L
N2/10 Supplemental restraint system control unit 7K
N22/1 Climate control, control unit 52E
N3/10 ME-SFI [ME] control unit 2H
N3/9 CDI control unit 2H
N30/4 Electronic Stability Program (ESP®) control unit 23F
N30/8 Regenerative braking system control unit 22F
N32/15 Driver multicontour seat control unit 38D
N32/16 Front passenger multicontour seat control unit 38E
N32/2 Front passenger seat control unit 38C
N32/20 Left rear multicontour seat control unit 38E
N32/21 Right rear multicontour seat control unit 38F
N62/4 Mercedes-Benz Intelligent Drive control unit 2E
N69/1 Driver door control unit 38G
N69/2 Front passenger door control unit 38H
N69/3 Left rear door control unit 38H
N69/4 Right rear door control unit 38H
N73 Electronic ignition switch control unit 14J
N73 Electronic ignition switch control unit 28H
N80 Steering column module control unit 2G
U1121 Valid for model 167 21E
U1121 Valid for model 167 2A
U1122 Valid for model 293 21F
U1122 Valid for model 293 2B
U1122 Valid for model 293 24G
U1122 Valid for model 293 34H
U1122 Valid for model 293 42F
U1122 Valid for model 293 51C
U1128 Valid for combustion engine 2G
G15075203Courtesy of MERCEDES-BENZ USA
G15075204Courtesy of MERCEDES-BENZ USA
G15075205Courtesy of MERCEDES-BENZ USA