46CF

46CF - P20A2

Information saved in
DDE

Fault code
46CF - P20A2

Fault text
DDE: Reducing-agent changeover valve, activation: Short
circuit to ground

Fault description
The DDE recognizes a short circuit to ground in the output
stage:
Reduction agent switch valve (urea delivery from passive to
active urea tank)

Condition for fault identification
Test condition:
The error check proceeds continuously according to the
programmed process grid.
Voltage condition:
The error check proceeds continuously according to the
programmed process grid.

Condition for fault memory entry
Debounce (1000 ms)

Action in service
1. Check wires and plug connections.
2. If wiring and plug connections are OK:
3. Replace delivery module.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none