Back Light and Rear Glass Heat Rays Check
BACK LIGHT AND REAR GLASS HEAT RAYS CHECKError Diagnostics:
In turning on IG and then light switch, battery power is supplied for FATC connector A-2 terminal through wiring. The supplied power passes connector A-1 terminal through light bulb in FATC and flows into rheostat as shown in the figure. The brightness is adjusted according to resistance value of rheostat.