S80 T6 L6-2.9L Turbo VIN 91 B6294T (2002)
information about why the lamp has lit. From model year 2002 inclusive the color of the lamp has changed from orange to yellow/red. The lamp lights
red in the event of serious faults, or yellow for less serious faults.
Malfunction indicator lamp (MIL)
The malfunction indicator lamp (MIL) only lights in the combined instrument panel (driver information module) (5/1), if certain emissions related
diagnostic trouble codes (DTCs) are stored in the engine control module (ECM) (4/46) or transmission control module (TCM) (4/28). The signal
between the driver information module and engine control module (ECM) is directly connected.
