Toyota Celica 2005, Repair Manual

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− BODY ELECTRICAL HEADLIGHT AND TAILLIGHT SYSTEM
BE − 21
2005 CELICA (RM1131U)
12. FAIL − SAFE FUNCTION
Light Control Computer
Condition Content
Output open
Lighting of the headlight stops, and the condition is maintained until power is turned
ON again (headlight dimmer switch OFF
→ ON).
Short between output terminals
Lighting of the headlight stops within 1 second and the condition is maintained until
power is turned ON again (headlight dimmer switch OFF
→ ON).
Leakage between output terminal and body ground
Lighting of the headlight stops, and the condition is maintained until power is turned
ON again (headlight dimmer switch OFF
→ ON).
Low lamp voltage
Lighting of the headlight stops, and the condition is maintained until power is turned
ON again (headlight dimmer switch OFF
→ ON).
High lamp voltage
Lighting of the headlight stops, and the condition is maintained until power is turned
ON again (headlight dimmer switch OFF
→ ON).
Bulb flushing
S The condition is maintained more than 60 seconds.
S Lighting of the headlight stops, and the condition is maintained until power is
turned ON again (headlight dimmer switch OFF
→ ON).
High input voltage
As soon as the voltage comes within the range of operation voltage (9 − 16 V), it
come on again.
Low input voltage
When voltage become 9.5 V
→
7.5 V, lighting condition is maintained until possible
voltage (Below 6 V) to keep lighting and lighting of the headlight stops.
As soon as the voltage becomes within the range of operation voltage (more than 9
V), it comes on again.
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