Malfunction Indicator Lamp (MIL) Activation
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Emissions related diagnostic trouble codes (DTC) are stored even when it is lit. A counter counts down to determine when the malfunction indicator lamp (MIL) should be lit. The conditions for lighting the malfunction indicator lamp (MIL) vary depending on the diagnostic trouble code (DTC) that is stored.
Faults that have been diagnosed in the automatic transmission may affect emissions and the automatic transmission may request the activation of the malfunction indicator lamp (MIL).