P202B

46EE - P202B

Information saved in
DDE

Fault code
46EE - P202B

Fault text
DDE: Reducing-agent active-tank heating, activation: Short
circuit to ground

Fault description
The DDE recognizes short circuit to ground error in the
output stage:
Active tank heating system.

Condition for fault identification
Test condition:
The check frequency depends on the process sequence
control.
Voltage condition:
The check frequency depends on the process sequence
control.

Condition for fault memory entry
Debounce (2000 ms)

Action in service
1. Check wires and plug connections.
2. If wiring and plug connections are OK:
3. Use diagnosis to activate heating systems.
4. Check fuses.
5. Replace power switch.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
Heater circuit 2 is for the metering wire and delivery
module.
If DTC 4C72 or 49ED is logged, this is a collateral error and
shuts down the relay. Repair this malfunction and delete
stored DTCs from the error memory.