Celica GT Ltd Ed Convertible L4-2164cc 2.2L DOHC MFI (1997)
Malfunction Indicator Lamp: Description and Operation
OBD II regulations require that the vehicle's on-board computer lights up the Malfunction Indicator Lamp (MIL) on the instrument panel when the
computer detects a malfunction in the computer itself or in drive system components which affect vehicle emissions. In addition to the MIL
lighting up when a malfunction is detected, the applicable Diagnostic Trouble Codes (DTC) prescribed by SAE J2012 are recorded in the ECM
memory.
