Diagnostic Manual, Info./Comm., Volume 1
Diagnosis - Function 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 must go out:
After 4 seconds, the SRS MIL will extinguish.
After 6 seconds, the safety belt warning lamp will extinguish.
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.
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).
The indicator instruments must reflect the actual operating conditions.
Point a flash light at the photo transistor ( 23 , Figure 2), at the same time the illumination of the LCD display (outside temperature display, trip odometer, odometer and electronic clock) must brighten noticeably.