Back Light And Rear Glass Heat Rays Check - Hyundai Tiburon 2003 Workshop Manual

BACK LIGHT AND REAR GLASS HEAT RAYS CHECK

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 reostart as shown in the above
figure. The brightness is adjusted according to resistance value of reostart.
ERROR DIAGNOSTICS
Symptoms
When light switch is ON, partial error
occurs in back light
When light switch is ON, entire error
occurs in back light
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Causes
Light bulb lighting error in FATC
Light power supply error
Page 2 of 8
How to check
Measure voltage of tail light shown in
the above figure after switching on light.
If 10V and more, check FATC connector
and if no problem, measure signal
voltage of reostart shown in the above
figure. If 8V and more, check reostart
wiring and reostart.
If tail light is below 1V, check tail light
wiring.
24.04.2008