ECM - Reprogramming of Module Not Possible

Group 12
Engine Electrical Systems

Bulletin Number
12 16 99

Woodcliff Lake, NJ
May 1999
Product Engineering

SUBJECT:
Reprogramming of Engine Control Module May Not Be Possible


MODEL:
E38 - 740i/iLA with M62 engine and DSC 3 produced as of 9/98
E39 - 54Oi/iA/iTA with M62 engine and DSC 3 produced as of 9/98
E39 - 528i/iA/iTA with M52 engine and DSC 3 produced as of 9/98

Situation:
Reprogramming procedure can not be performed and the following error message is displayed:

"Programming cannot be performed correctly! Test code 002400 Repeat programming if necessary."

Cause:
DSC 3 control module is disturbing the communication path between the DIS/MODIC and the DME and/or EGS modules.


Correction:
The power supply to the DSC 3 module must be removed prior to beginning the programming operation.

Remove the following fuse(s) which supply power to the module:





Warranty
Information: Information Only