Fault Code 0907

Fault code 0907

Load management operation on vehicle electrical system/ DME control module

Diagnostic conditions
- Ignition on
- Internal control module function test
- Load management is coded
- Engine running
- Engine speed approx. 2000 1/min.

Possible causes of fault
- 'no display' Loads are/were switched off temporarily. The load management operation was enabled because of undervoltage.

NOTE: The DME control module receives the analogue signal from terminal 'DF' on the generator and sends the evaluated information to the CAN drive. The vehicle electrical system control module determines the situation of the vehicle electrical system based on the battery voltage, the 'DF signal' received via the CAN comfort and the heavy current loads with short operating time. A fault is detected and a fault bit is set if the 'DF signal' falls below a defined value during a critical vehicle electrical system state. If the fault bit remains set for more than ten seconds, the fault 'Load management operation on vehicle electrical system/DME control module' is stored in the fault memory of the vehicle electrical system control module.

Affected pins
Plug 'A' on vehicle electrical system control module:
- Pin 1 'CAN comfort (high)'
- Pin 2 'CAN comfort (low)'

Diagnosis/troubleshooting