P0603 (Audi): Lack of proper voltage to the Keep Alive Memory connection on the… — what it means, the affected system and what to check before replacing parts.
Lack of proper voltage to the Keep Alive Memory connection on the PCM, Defective PCM Keep Alive Memory Module (KAM), Defective PCM ground circuit(s), Defective PCM controlled output devices. Source catalogue definition; confirm applicability using vehicle service information.
Affected system: Powertrain