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1.11 Instrument Cluster (IC)   >   11 Diagnosis - Function Test

Bulb test Turn the ignition key to position "2". All malfunction indicator/warning lamps must illuminate. Start engine. At > 480 engine RPM, all indicator/warning lamps are to extinguish, indicating that all systems monitored are O.K. Independent of engine operation the following lamps go out: After 4 seconds, the SRS MIL will extinguish. After 6 seconds, the safety belt warning lamp will extinguish. CAUTION! Should the malfunction indicator/warning lamps remain illuminated and/or come on while driving, it will be necessary to check the corresponding system with the Diagnostic Manual and/or the monitored fluid level as necessary. Warning buzzer Exterior illumination and service brake warning Ignition key in ignition lock warning Safety belt warning for 6 seconds (the warning tone will cease if safety belt buckle is latched). Indicator instruments The indicator instruments must reflect the actual operating conditions. Photo transistor Point a flash light at the Photo transistor ( 23 , Figure 2), at the same time the illumination for the LCD display (outside temperature display, trip odometer, odometer and electronic clock) must brighten noticeably. CAUTION! Instrument cluster with multi-function display Functional problems (example: worn brake pads, engine coolant level insufficient, burnt out exterior lamp etc) or a system failure (ABS system fault, SRS system fault) will be indicated in place of the outside temperature, trip odometer odometer and electronic clock by use of a warning display. The warning display will be red or orange in color, based on the problem, additionally, a warning tone will be heard.