Actuate Turn Signal Light, Basic Function - GF82.10-P-1023A
Model All (4xWD)
Model All (CAR)
Overview
This document contains information on:
- General
- Vehicles with Economic Commission for Europe (ECE) version
- Vehicles with Canada or USA version
- Vehicles with trailer hitch
- Function requirements
- Function
- Turn signals
- Central locking locking/unlocking feedback
- Hazard warning flashing
- Hazard warning flashing after emergency braking
- Hazard warning flashing after emergency stop
- Hazard warning flashing after airbag deployment
- Hazard warning flashing for alarm
General
Turn signal light actuation comprises all functions for output of the turn signal, various warnings and feedback.
The various requests to output the function are prioritized by the exterior lighting control unit (dependent on vehicle either the central signal acquisition and actuation module or the front signal acquisition and actuation module).
Turn signaling can be overridden by the hazard warning flasher function, and vice versa. The exterior lighting control unit sends a flasher frequency with the time period for the bright phase of the turn signal lights over CAN to the corresponding control units.
The respective active function is indicated by indicator lamps and also signaled acoustically.
If a turn signal light fails, the frequency at which the indicator lamps are actuated is doubled, as is the frequency of the acoustic feedback. The flashing frequency of the turn signal lights of 1.5 Hz remains the same.
Vehicles with Economic Commission for Europe (ECE) version
During actuation of the turn signal lights, the daytime running lights are switched off.
Vehicles with Canada or USA version
During turn signal light actuation, the daytime running lights are dimmed to position light level.
Vehicles with trailer hitch
During trailer operation, the turn signal light on the trailer is also actuated. The exterior lighting control unit requests actuation of the turn signal lights on the trailer. The trailer recognition control unit implements this request.
Function requirements
- Circuit 15 R on (for turn signaling)
Function
Turn signals
Pressing the combination switch downwards or upwards requests turn signaling in the corresponding direction.
If the combination switch is only operated briefly (under 440 ms), three blinking cycles are output (one-touch turn signaling).
On vehicles with Active Parking Assist, the system requests turn signaling during the assisted parking procedure.
The one-touch turn signaling is overridden by the hazard warning flasher or canceled if the combination switch is activated in the opposite direction.
Central locking locking/unlocking feedback
The hazard warning flasher is automatically activated when the central locking system (CL) is locked/unlocked. When the CL is unlocked, the hazard warning flashing function is activated for one blinking cycle; three blinking cycles are output when it is locked.
Hazard warning flashing
During hazard warning flashing, all turn signal lights on the vehicle are actuated synchronously. Depending on the ignition status, the following two duty cycles are output:
- Circuit 15 R ON: light 52 %, dark 48 %
- Circuit 15 R off: light 35 %, dark 65 %
If a turn signal light fails during hazard warning flashing, the frequency at which the indicator lamps are actuated doubles. The frequency of the acoustic feedback is not doubled.
Hazard warning flashing can be triggered manually via the hazard warning lights button.
Hazard warning flashing after emergency braking
Not for Canada or USA version.
If the vehicle was decelerated by maximum full-stop braking from a speed of at least 70 km/h to less than 3 km/h, the hazard warning flashers are automatically activated.
The hazard warning flasher is deactivated by pressing the hazard warning lights button or upon exceeding a speed of 10 km/h.
Hazard warning flashing after emergency stop
Vehicles with Driving Assistance Package.
If the vehicle is decelerated below the speed of 60 km/h due to an emergency stop, the hazard warning flasher is automatically activated.
As long as the vehicle is not decelerated below 3 km/h, the hazard warning flasher is also switched off when the emergency stop is over.
The hazard warning flasher continues to operate below 3 km/h.
The hazard warning flasher is deactivated by pressing the hazard warning lights button or upon exceeding a speed of 10 km/h.
The hazard warning flasher during emergency stop function is not available in the following countries:
- China
- Taiwan
- South Korea
- India
Hazard warning flashing after airbag deployment
When an airbag is deployed or during a rollover of the vehicle (crash signal sent), the hazard warning flasher is automatically activated. The hazard warning flasher is deactivated by pressing the hazard warning lights button.
Hazard warning flashing for alarm
Vehicles with anti-theft alarm system (ATA).
The hazard warning flasher is automatically activated when an ATA or emergency alarm is triggered. Hazard warning flashing is deactivated after approx. 5 min.
| Function schematics | |||
| Function schematic, turn signaling | Model 118, 177, 243, 247 | PE82.10-P-2509-97A | |
| Model 167, 293 | PE82.10-P-2509-97B | ||
| Model 213, 238, 257, 290 as of model year 2021 | PE82.10-P-2509-97D | ||
| Model 206, 223, 232, 254, 295, 296, 297 | PE82.10-P-2509-97E | ||
| Model 464 | PE82.10-P-2509-97F | ||
| Function schematic, hazard warning flashing | Model 118, 177, 243, 247 | PE82.10-P-2511-97A | |
| Model 167, 293 | PE82.10-P-2511-97B | ||
| Model 213, 238, 257, 290 as of model year 2021 | PE82.10-P-2511-97D | ||
| Model 206, 223, 232, 254, 295, 296, 297 | PE82.10-P-2511-97E | ||
| Model 464 | PE82.10-P-2511-97F | ||
| Further basic functions | |||
| Trailer recognition control unit, basic function | Model all (4xWD) with code E43 (Socket, 13-pin, 12 V, external at rear) Model all (CAR) with code 550 (Trailer coupling) |
GF31.19-P-9890A | |
| Basic function of signal acquisition and actuation module | Model 118, 177, 243, 247, 464 | GF54.21-P-9895A | |
| Basic function of signal acquisition and actuation module at front | Model 167, 206, 223, 232, 254, 293, 295, 296, 297 Model 213, 238, 257, 290 as of model year 2021 |
GF54.21-P-9896A | |
| Basic function of signal acquisition and actuation module at rear | Model 167, 206, 223, 232, 254, 293, 295, 296, 297 Model 213, 238, 257, 290 as of model year 2021 |
GF54.21-P-9897A | |
| Front door control unit, basic function | GF72.29-P-9891A | ||
| Headlamp control unit, basic function | Model all (CAR) | GF82.10-P-9890A | |
| Front lamp unit, basic function | GF82.10-P-2000A | ||
| Rear lamp unit, basic function | GF82.10-P-2004A | ||
| Additional brake lamp, basic function | GF82.10-P-2019A | ||
| Component descriptions | |||
| Outside mirror turn signal lamp, component description | Model 223 | GF82.25-P-4008A |