SELF-DIAGNOSIS FUNCTION
F-77prose procedureDESCRIPTION
When troubles occur in the main input devices or output devices, check for the cause using the SST. Failures of each input and output device are indicated and retrieved from the engine control unit as malfunction code numbers.
NOTE
The engine control unit constantly checks for malfunction of the input devices.
But, the engine control unit checks for malfunction of output devices only in a 3 second period after the ignition switch is turned ON and the diagnosis connector terminal (TEN) is grounded.