Morse code is right
, goes something like this (from the manual for my 156)
Have the code in front of you
Turn the key to MAR
Fully depress the accelerator and keep it pressed, the engine control warning light will come on for approx 8 seconds then go out, release the accelerator.
the engine control light will begin to flash, after it has flashed the number of times of the first digit fully depress the accelerator and keep it there till the engine control light comes on for 4 seconds and then goes out. release the pedal.
It will begin to flash again, this time for the second digit, do the same when it has flashed the appropriate number of times. Repeat for all 5 digits.
After the light has gone out for the last digit and you have released the pedal the light should come on for another 4 secs, this is to confirm all is OK and the code has been accepted. Start the car.
If the light stays on, it hasn't worked and you will need to start from scratch, and every time the engine is started you will need to do the same.
Hope you don't need that bud! Lets just hope it's having a "moment"