Self-diagnosis of the VABU GM VAZ-2108/09/99 is carried out through a normal diagnostic connector with the help of "CHECK ENGINE". Diagnostic connector on the right side of the instrument panel. To read error codes, you must connect the pin pin pin in the pin A, which is connected to the "mass".
After contact A and B connector, the ignition key is placed in position I (ignition). The "CHECK ENGINE" symbol must flash three times in a row (code "12"). The order of signaling, the flash, the pause, the flash, the flash-a long pause (2-3 seconds). Then the algorithm repeats two more times.
Code "12" means the self-diagnosis system readiness. If the code "12" is not followed, then the control unit is not. After the code "12", the CHECK ENGINE option will continue to display the code "12" if there are no errors, or the error code will be displayed three times in a row. If there are multiple errors in the block memory, each code is displayed three times.