Lamp Substitution
WARNING: This page is about a different car, the 1989 Cadillac Allante. However, it is still accessible from the selected car via links, so may be relevant.
If a system fault is detected that would disable the communication among all OSMs and the BCM, the BCM will activate the redundant relays which will power the left low beam lamp and the left outer upper tail lamp. This action eliminates the possibility of total loss of lighting. See LAMP SUBSTITUTION table for a complete list.
LAMP SUBSTITUTION
| Malfunctioning Lamp | Substitute Lamp |
|---|---|
| Low Beam | Fog Lamp |
| High Beam | Low Beam |
| Front Turn Signal | Parking Lamp |