BMW fault code 0001
Navigation Japan
In the navigation japan, code 0001 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.
JNAV-CE: CD changer unit
Module version: Navigation, Japan (JNAV_CE)
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.
CD changer
Module version: Navigation Japan (NAV_JAP)
In: 7 Series (E38) 1998–2001
CD changer unit
Module version: Navigation Japan (NAV_JAP2)
In: 3 Series (E46) 2001–2006, X5 (E53) 2001–2006
Reading and clearing it
Fault code 0001 is a BMW code, stored in the car's navigation japan, 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 navigation japan is on: 7 Series (E38), 5 Series (E39), 3 Series (E46), Z8 (E52), X5 (E53), X3 (E83), Z4 (E85), Z4 (E86)
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