Download Vauxhall/Opel Blink Code Service Manual – Some control modules don’t have a serial link. To read the fault code, you will have a to use a different method. Bridge pin A and B in the diagnostic connector Turn the ignition on Count flashes in the check engine lamp Translate them using the list below To erase the fault code disconnect the battery for 30 seconds Blink code interpretation The code read out always starts with “Code 12” repeated three times, the fault codes are flashed. All codes are repeated three times, the first digit is flashed with a space of 0.4 seconds, then there is a 1.2 second delay until the second digit is flashed. The delay between codes is 3.2 seconds. The sequence is ended by once again flashing of “Code 12” three times.