Emergency program for gearbox control GS20

In certain cases on vehicles with gearbox control GS20 / GM5 gearbox with activated emergency program, faults that occur can be remedied by programming the DDE control unit.

Vehicles concerned

• E46 / M57
  330dA model year 2001 330dA model year 2001 all wheel drive
  
• E39 / M57
  525dA model year 2001 530dA model year 2001
  
• E53 / M57
  X5 3.0d (production period 04/01 to 09/01)
  

Remedial measures

A remedy is possible with the following marginal conditions:

• The gearbox is in the emergency program.
  
• The fault 129 (81 HEX) ”CAN timeout DME/DDE” is stored in the fault code memory of the EGS.
  
• In the environment related conditions or detailed information on the defect location, the following information on error detection is also stored:
  
  • at engine speed 0.0 rpm to around 200 rpm (starter motor speed)
    
  • at output speed 0.0 1/min
    

To remedy the present fault, the DDE control unit must be reprogrammed to the latest status. Optimised DDE software statuses are available as of DIS CD Version 27.