FixVault
Home
›
Cadillac
›
1990
›
Seville Base, 4T60/ME9
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - Tests W/Codes
›
IPC System Self-Diagnostics
›
IPC Specific Input (II) Codes
›
II82: Twilight Enable Switch
II82: Twilight Enable Switch
Display is LO whenever the system is on.