BMW fault code A1A8
Amplifier
In the amplifier, code A1A8 means different things depending on the version of the module in the car. Find your car below; the app shows the right one for yours.
AMP: Control module: internal fault
Module version: Amplifier (AMP_60)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
DSP defective (Error_DSP_Funktion)
Module version: Amplifier (AMP_E65)
In: 7 Series (E65) 2001–2008, 7 Series (E66) 2002–2008, 7 Series (E67) 2002–2008
AMP: Overtemperature, control module
Module version: Amplifier (AMPH56)
In: 5 Series (E60) 2003–2010, 5 Series (E61) 2004–2010, 6 Series (E63) 2003–2010, 6 Series (E64) 2004–2010
AMPH: Control module: internal fault
Module version: Amplifier (AMPH70)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
AMP: Overtemperature, control unit
Module version: Amplifier (AMPHH2)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
AMPT: No communication to DSP
Module version: Amplifier (AMPT70)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
AMPT: No communication with digital sound processor
Module version: Amplifier (AMPTLR89)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
Reading and clearing it
Fault code A1A8 is a BMW code, stored in the car's amplifier, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.
The amplifier is on: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X1 (E84), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
Coming soon
Enter your email address to hear when AutoLingo for BMW is ready.