General: The background lighting of all warning lamp symbols as well as the engaged drive stage for automatic transmission together with the selected drive program is provided by LEDs.
General brake warning lamp: The warning lamp can be switched on by the check-control module (CCM) when, for example, the CCM detects the brake fluid level as being too low. The warning lamp is also switched on after ignition "ON" as a function check (pre-drive check) and goes out when a minimum engine speed of 400 rpm is exceeded.
In the event of a break in the line connection from the IKE sensor output to the IKE sensor input, the brake lining wear detection function sends an I-bus telegram to the check-control. On receiving this signal, a corresponding message is sent from the check-control to the IKE where it is indicated in the text display. The general brake warning lamp is not switched on for this purpose.
Parking brake warning lamp: The warning lamp is activated by a switch on the parking brake. The switch is open when the parking brake is released.
The "parking brake" information is made available in the form of a telegram via the instrument bus (I-bus ) and body bus (K-bus ).
Seat belt indicator lamp: The seat belt indicator lamp is activated dependent on the coding data. For vehicles without a seat belt buckle contact, it is switched on for approx. 6 seconds after terminal 15 "ON".
On vehicles equipped with a seat belt buckle contact, the warning lamp is switched on as of terminal 15 "ON" by a corresponding I-bus telegram from the check-control module (CCM) until the seat belt contact is opened (seat belt buckle locked in position).
Fuel reserve lamp: The fuel reserve warning lamp is not switched by a reserve contact in the level sensor. It is switched dependent on the tank content compared to a reserve threshold value.
Turn signal indicator lamps: The turn signal indicator lamps are switched by means of a corresponding I-bus telegram from the light module (LM) to the instrument cluster electronics (IKE).
Fog light indicator lamp: The fog light indicator lamp is switched by means of a corresponding I-bus telegram from the light module (LM) to the instrument cluster electronics (IKE).
Rear fog light indicator lamp: The rear fog light indicator lamp is switched by means of a corresponding I-bus telegram from the light module (LM) to the instrument cluster electronics (IKE).
High beam indicator lamp: The high beam indicator lamp is switched by means of a corresponding I-bus telegram from the light module (LM) to the instrument cluster electronics (IKE).
Oil pressure indicator lamp: The warning lamp is switched by the oil pressure switch. The information from the oil pressure switch is read by the instrument cluster electronics (IKE) as status data and a corresponding I-bus telegram is sent to the check-control module (CCM). On receiving this signal, a corresponding message is sent from the check-control to the IKE where it is indicated in the text display.
Note
All warning lamps not listed have no functional connection with the instrument cluster electronics (IKE ). They are only supplied with positive or negative from the display unit of the instrument cluster.