Output acoustic warning messages, function - GF54.30-P-2013SX
MODEL 221.0 /1, 216.3 up to Model Year 8
For acoustic fault and warning signals 2 different sound patterns are available to the instrument cluster (A1). On the one hand the instrument cluster generates chime. The chime is emitted via the internal speaker. On the other hand the instrument cluster can produce and output a warning tone (audible beep) via the internal warning buzzer (A1h1). The warning tones can be output as a single chime or single beep as well as intermittent chime or intermittent beep. The audible turn signal indicator (A1h2) with turn signal knocking forms an exception. This is produced via a relay located in the instrument cluster and is actuated depending on the function (turn signaling or hazard warning flasher).
Audible turn signal indicator, hazard warning flashing
Turn signal knocking always sounds at the same time as hazard warning flashing. The following functions can trigger hazard warning flashing:
- Manual actuation of the hazard warning system button (A40/9s3)
- Triggering of an airbag
- Triggering the anti-theft alarm system [EDW] alarm on vehicles with code (551) Anti-theft alarm system (ATA [EDW])
Turn signals
The turn signal knocking of the audible turn signal indicator always sounds at the same time as turn signaling.
If one of the turn signal lamps fails, the audible turn signal indicator is actuated at twice the frequency.
Information flow, audible turn signal indicator:
- The signal for actuating the audible turn signal indicator is placed on the interior CAN by the rear SAM control unit with fuse and relay module (N10/2).
- The central gateway control unit (N93) reads in the signals from the interior CAN and places them on the central CAN.
- The instrument cluster reads in the signals from the central CAN and actuates the audible turn signal indicator accordingly
Single chime (with system warnings)
The following systems use the speaker for acoustic warning as a single chime at the same time as the indicator message and warning message in the multifunction display (A1p13):
- Active Body Control (ABC)
- Active Steering Control (ASC)
- Electronic Stability Program (ESP)
- Antilock brake system (ABS)
- Supplemental restraint system (SRS)
- Central locking (CL [ZV])
- Distronic, with code (219) Distronic (DTR)
- Distronic Plus, with code (233) Distronic Plus
- Sensotronic Brake Control (SBC)
- Electronic parking brake
- Tire pressure monitor (RDK), with code (475) Tire pressure monitor (Beru)
- Brake fluid indicator switch
- On-board electrical system indicator
- Engine oil level indicator
- Trailer hitch, with code (550) Trailer hitch (model 221)
- Limiter, except code (494) USA version
- Cruise control
intermittent gong
The following systems use the speaker for acoustic warning as a single chime at the same time as the indicator message and warning message in the multifunction display:
- Distronic, with code (219) Distronic (DTR)
- Distronic Plus, with code (233) Distronic Plus
- Limiter, except code (494) USA version
- Cruise control
- Electronic parking brake
- Lights on warning
- Key warning
- CL
Single beep (in the event of system faults)
The following systems use the warning buzzer for acoustic warning as a single beep at the same time as the indicator message and warning message in the multifunction display:
- Active Body Control (ABC) System fault
- Active Steering Control (ASC) System fault
- Supplemental restraint system (SRS) Seat belt reminders
- Cooling system Coolant temperature in range critical for the engine
- Engine oil system
Engine oil level too low
Intermittent beep
The following systems use the warning buzzer as a single beep at the same time as the indicator message and warning message in the multifunction display:
- Distronic, with code (219) Distronic (DTR)
- Distronic Plus, with code (233) Distronic Plus
- Sensotronic Brake Control (SBC)
- Park Assist, with code (229) Park Assist
Warning tone functionality with seat belt reminder warning
The seat belt reminder warning chime is output depending on the country.
On vehicles with code (494) USA version or with code (623) Gulf States version the warning buzzer is actuated as of "circuit 61 ON" for 6 s, irrespective of the following components:
- Driver seat belt buckle and seat belt warning switch (S68/1)
- Front passenger seat belt buckle and seat belt warning switch (S68/2)
- Front passenger seat occupied and child seat recognition sensor (B48)
On vehicles with code (498) Japan version the seat belt warning lamp lights up as of "circuit 15 ON" for 6 s, irrespective of the following components:
- Driver seat belt buckle and seat belt warning switch
- Front passenger seat belt buckle and seat belt warning switch
- Front passenger seat occupied and child seat recognition sensor
After the first 6 s the actuation characteristics of the seat belt warning lamp correspond to those of the other national versions.
The actuation characteristics of the warning buzzer are then as follows:
- The warning chime is output if the status "circuit 61 ON" is present, the vehicle speed > 25 km/h and the driver seat belt buckle and seat belt warning switch is not closed. The warning chime is muted as soon as the driver seat belt buckle and seat belt warning switch is closed.
- The seat belt warning lamp lights up if the status "circuit 61 ON" is present, the vehicle speed > 25 km/h, the front passenger seat occupied and child seat recognition sensor has detected a person or a child seat on the front passenger seat and the front passenger seat belt buckle and seat belt warning switch is not closed. The warning tone is deactivated as soon as the front passenger seat belt buckle and seat belt warning switch is closed.
Warning chime sequence
The warning chime sounds intermittently (missing temporarily and repeats at an interval of 5 s On and 3 s Off). The warning tone sequence of the seat belt reminder warning is deactivated immediately if the driver / front passenger have fastened their seat belts. The maximum actuation time of 110 s continues running in the background. If a belt is unfastened within this time, the warning chime sequence is output again. The seat belt warning lamp lights up during the warning chime sequence (A1e9).
The seat belt reminder warning is given once for each journey but can be activated again by driving the vehicle at a speed below 5 km/h.
| Instrument cluster, component description | GF54.30-P-6000SX |