Additional Functions After An Accident, Basic Function - GF91.60-P-1004A

Model All (4xWD)

Model All (CAR)

Overview

This document contains information on:

General
Function requirements
Function

General

After an accident, the Supplemental Restraint System (SRS) sends a crash signal via the CAN bus, among other things, causing other control units to start various functions. These measures as a whole are intended to further reduce the consequences of an accident.

Function requirements

Circuit 15R ON

Function

Functions that may be triggered on a car after a collision are listed in the following table:

Subfunction	Aim
Switch on hazard warning system.	Warn other road users.
Switch on interior illumination.	Make orientation in the vehicle easier for vehicle occupants or persons rendering assistance.
Switch on ambient lighting (vehicles with ambient lighting). The ambient lighting lights up red at full brightness.	Improve orientation for persons in vehicle interior.
Open central locking.	Enable access to vehicle occupants, to auxiliary material and to the QR code at the fuel filler flap.
Open front side windows and, depending on the equipment installed, also open side windows in rear passenger compartment.	To extract any smoke particles generated by the restraint equipment.
Switch off engine (depending on type of accident and impact severity).	Reduce fire hazard.
Shutoff air conditioning system.	Prevent any ingress of noxious gases, reduce fire hazard.
Trigger pyrofuse (hybrid vehicles, electric vehicles or vehicles with 48 V technology).	Switch off high-voltage on-board electrical system and reduce voltage in system.
Switch off high-voltage components (hybrid vehicles, electric vehicles).	Switch off high-voltage on-board electrical system and reduce voltage in system.
Switch off 48 V components (vehicles with 48 V technology).	Switch off high-voltage on-board electrical system and reduce voltage in system.
Switch off stationary heater (vehicles with stationary heater).	Reduce fire hazard.
Automatic emergency call (vehicles with RAMSES or HERMES communications module)	Notify rescue services as quickly as possible.
Crash-active easy entry and exit feature (vehicles with seat adjustment with memory function). The electrically adjustable steering column is moved upwards.	Make it easier for driver to exit vehicle or for first aiders to rescue driver from vehicle.
Post-collision brake (depending on equipment): If an accident is detected, the multi-collision brake can initiate automatic braking. The parking brake is applied automatically if the vehicle comes to a standstill. The driver can cancel this automatic brake application by braking more heavily than the automatic brake application or by pressing firmly on the accelerator pedal.	The severity of a consequential collision can be reduced or even avoided depending on the accident situation.
Emergency responders (depending on equipment): Behavior instructions are displayed in the central display in certain detected breakdown situations and after a severe accident.	Orientation aid and support in an exceptional situation.

Functions that may be triggered on an off-road vehicle after a collision are listed in the following table:

Subfunction	Aim
Switch on hazard warning system.	Warn other road users.
Switch on interior illumination.	Make orientation in the vehicle easier for vehicle occupants or persons rendering assistance.
Open central locking system (depending on the equipment installed).	Enable access to vehicle occupants, to auxiliary material and to the QR code at the fuel filler flap.
Switch off engine (depending on type of accident and impact severity).	Reduce fire hazard.
Shutoff air conditioning system.	Prevent any ingress of noxious gases, reduce fire hazard.
Switch off stationary heater (vehicles with stationary heater).	Reduce fire hazard.
Post-collision brake (depending on equipment): If an accident is detected, the multi-collision brake can initiate automatic braking. The parking brake is applied automatically if the vehicle comes to a standstill. The driver can cancel this automatic brake application by braking more heavily than the automatic brake application or by pressing firmly on the accelerator pedal.	The severity of a consequential collision can be reduced or even avoided depending on the accident situation.

Function schematics
Function schematic, trigger additional functions after accident	Model 118, 167, 177, 243, 247, 293	PE91.60-P-2502-97A
	Model 223 Model 232	PE91.60-P-2502-97B
	Model 213, 238, 257, 290 as of model year 2021	PE91.60-P-2502-97C
	Model 206, 254, 295, 296, 297	PE91.60-P-2502-97D
	Model 464	PE91.60-P-2502-97F
Further basic functions
Steering column adjustment, basic function	Model all (CAR)	GF46.15-P-1000B
Fuel supply, basic function	Model all with engine all	GF47.00-P-1003A
Power window assembly, basic function	Model all (CAR)	GF67.39-P-9900A
Central locking system, basic function	Model all (CAR)	GF80.20-P-9900A
Actuate turn signal light, basic function	Model all (CAR)	GF82.10-P-1023A
Interior lighting, basic function		GF82.20-P-9900A
Ambient lighting, basic function	Model all (CAR) with code 876 (ambient lighting) Model all (CAR) with code 877 (Ambient lighting) Model all (CAR) with code 878 (CONNECTED LIGHT ambient lighting) Model all (CAR) with code 891 (Premium ambiance illumination) Model all (CAR) with code 894 (Premium Plus ambiance illumination)	GF82.20-P-9901A
Emergency call system, basic function	Model all (CAR) with code 362 (HERMES communications module LTE) Model all (CAR) with code 383 (RAMSES ENTRY communication module) Model all (CAR) with code 384 (RAMSES HIGH communication module)	GF82.95-P-9900A
Climate control, basic function		GF83.00-P-9900A
Stationary heater, basic function		GF83.70-P-9900A
Supplemental restraint system control unit, basic function		GF91.60-P-9890A
Component descriptions
Supplemental restraint system control unit, component description	Model 223	GF91.60-P-4080A
	Model 243	GF91.60-P-4080B
	Model 206	GF91.60-P-4080C
	Model 297	GF91.60-P-4080D