Charging System Control Module: Testing and Inspection

Electrical Consumer Shut-Off Priority, Adapting

Special tools, testers and auxiliary items required

• Vehicle Diagnosis, Testing and Information System (VAS 5051A)

With this function, there is the opportunity to read out and reset the maximum reached shut-off priority.

For each shut-off of a consumer, a counter in Vehicle Electrical System Control Module (J519) counts up, maximum value is 14.

Consumer shut-off sequence:

1. RPM increase (voltage less than 12.7 V) - at further decrease and short fall 12.2 V

2. PTC heating element to 75%

3. Reduction of heat performance to 50%

4. PTC heating element to 50%

5. Seat heater and ventilation off

6. Front window shut-off

7. PTC heating element to 25%

8. Wiper rest position heater off

9. Mirror heater off

10. PTC Heating element off

11. Steering wheel heater off

12. Rear window heater off

13. RPM increase, 2nd stage

14. A/C system off


- Connect the (VAS 5051A). Refer to => Electrical Equipment General Information 97 Description and Operation.

- In (VAS 5051A) , select operating mode "Guided Fault Finding".

- Using the "Go To" button, select "Functions/Component selection" and the following menu options in sequence:

• Body

• Electrical Equipment

• 01 - On Board Diagnostic (OBD) capable systems

• Vehicle Electrical System Control Module

• Functions of Vehicle Electrical System Control Module

• Adapting shut-off priority