Interfaces, Supply

Instrument Cluster System Test

System test

The system test permits simple, visual assessment of the instrument cluster (pointer instruments, displays, lighting, warning and indicator (telltale) lamps).

Selecting system test function:

The system test is started with the left-hand button in the instrument cluster (trip recorder reset button). The button must be pressed and held with the ignition lock in "0" position, now turn the ignition lock to position "1" (terminal R radio setting) and release the button. When "test 1." appears in the display press the button once again, "test 2." now appears. After a short period of time, the display changes to "test 2.0". The system test can now be started by pressing the button once again.

The two-colored indicator lamps are activated yellow and red respectively when the ignition lock terminal is changed from position "1" (terminal R radio position) to position "2". On completion of the system test, it can be repeated by pressing the button once more.

These elements are:
- All pointer instruments (pointers are moved once over their indication range)
- All LC displays with a segment test and their background lighting

Indicator and warning lamps for:
- High beam
- Oil pressure (red) (ignition lock in position 2/terminal 15) or
- Oil level (yellow (ignition lock in position 1/terminal R)
- ASC
- Front/rear fog lights
- Windshield washer fluid level
- "CHECK ENGINE"
- EML (EPC) / MDK
- Coolant level
- Brake pad wear
- Tire pressure control
- Cruise control
- Belt warning
- Fuel reserve
- Coolant high temperature
- Left/right direction indicators
- Windshield washer fluid level
- Shift indicator (if automatic transmission is coded)
- Cruise control (Tempomat) cut-in
- Battery charge indicator lamp
- General brake warning lamp (at terminal 15)