non start

[abby1]

hi my father in law a4 96 1.8 will not start tries to orange key is flashing any ideas

[micheal balbrig]

If he has a spare key, try it first.

[abby1]

no only service key

[Doctle Odd]

She needs a scan it's either a weak transponder or a weak pick-up coil. Easy to sort

[abby1]

whats needed

[Doctle Odd]

Vcds

[abby1]

got it scan results are

Engine 1/5 - 18010 - power supply voltage too low P1602
2 &3/5 - 17967 - throttle valve control part (J338) fault in basic setting P1559
4/5 - 17916 - idle control sys: upper regulation limit reached P1508
5/5 - 17978 - engine start blocked by immobilizer P1570

Immobilizer - 01176 - key signal too small

[abby1]

fixed new cable from ign barrel to immoblizer box also duff car battery