Diagnosis

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 using the appropriate ALLDATA section 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 (see figure 1, Component ID), at the same time the illumination for the LCD display (outside temperature display, trip odometer, odometer and electronic clock) must brighten noticeably.