4C7C - P2064 (DDE)

4C7C - P2064

Information saved in
DDE

Fault code
4C7C - P2064

Fault text
DDE: Reducing-agent metering valve, activation: Positive
side, short circuit to positive

Fault description
The DDE recognizes a short circuit to positive in the output
stage:
SCR metering module.

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:
Replace SCR metering module.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none