BMW fault code 6439

Longitudinal dynamics management

ICM: Interface DSC (CLU status VDA ID=165 from F-CAN)

Module version: Integrated chassis management (ICM_71)

In: X5 (E70) 2006–2013, X6 (E71) 2008–2014

Reading and clearing it

Fault code 6439 is a BMW code, stored in the car's longitudinal dynamics management, 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 longitudinal dynamics management is on: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), X5 (E70), X6 (E71), X6 (E72), X1 (E84), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)

← 6438 All longitudinal dynamics management fault codes 643A →