DeVille Concours V8-4.6L VIN 9 (1994)
OPERATING ON-BOARD DIAGNOSTIC SYSTEM
To enter diagnostic mode, proceed as follows:
1. Turn ignition "ON."
2. Depress the "OFF" and "WARMER" buttons on the Climate Control Center (CCC) simultaneously and hold until the segment check appears on
the Instrument Panel Cluster (IPC).
TROUBLE CODE DISPLAY
After entering On-Board Diagnostics, a segment check is automatically performed and then any trouble code stored in computer memory will be
displayed. Codes may be stored for the Powertrain Control Module (PCM), Instrument Panel Cluster (IPC), Air Conditioning Programer (ACP),
Supplemental Inflatable Restraint (SIR) Traction Control System (TCS) or Road Sensing Suspension (RSS) systems.
