Activating instrument cluster, function - GF54.30-P-2006Q

WARNING: This page is about a different car, the 2009 Mercedes-Benz CLK350 and 2008 Mercedes-Benz CLK350. However, it is still accessible from the selected car via links, so may be relevant.

Model 209.3 /4

Networking of components

Fig 1: Activating Instrument Cluster Function Diagram

Courtesy of MERCEDES-BENZ USA

Activating the instrument cluster

Because it relies on black-screen technology, the details on the instrument cluster (A1) (e.g. displays, gauges, etc.) are clearly visible only when the instrument cluster (A1) has been activated. If the instrument cluster is activated (A1) the current values are show on the displays, the instrument cluster (A1) illumination is switched on and the fuel reserve indicator lamp (A1e4) is actuated.

The instrument cluster (A1) is activated when terminal 15g is switched on. The instrument cluster (A1) remains active for an additional 30 seconds after terminal 15g is deactivated, but this can be extended up to 2 minutes if an active warning occurs.

If terminal 15g is OFF, the instrument cluster (A1) is activated in the following circumstances:

If the instrument illumination rheostat and reset button is pressed (A1r1) the instrument cluster (A1) is activated for 30 seconds.
If the driver's door is opened or closed the instrument cluster (A1) is activated for 30 seconds.
If the standing lamps or head lights are switched on, the instrument cluster (A1) remains active for as long as the standing lamps are on.

If one of the circumstances mentioned above occurs while the instrument cluster (A1) is already active, the instrument cluster (A1) remains active for an additional 30 seconds. It is not possible to activate the instrument cluster (A1) using the buttons on the multi-function steering wheel.

Networking

The status of the left front door contact switch (S17/3) on left hand drive vehicles or the status of the right front door contact switch (S17/4) on right hand drive vehicles is read in by the rear SAM control unit with fuse and relay module (N10/2) and transmitted as a CAN message over the interior CAN.

The status of the standing lamps (ON/OFF) is relayed on the interior CAN by the driver-side SAM control unit with fuse and relay module (N10/1).

Instrument cluster (IC), location / task

GF54.30-P-3039Q