Camry CE Sedan 4-Door 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 DTCs prescribed by SAE J2Oi 2 are recorded in the ECM memory.
If the malfunction only occurs in 3 trips, the MIL goes off but the DTCs remain recorded in the ECM memory.
