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4D33 - P205B (DDE)

4D33 - P205B

Information saved in
DDE

Fault code
4D33 - P205B

Fault text
DDE: Reducing-agent active-tank temperature sensor,
plausibility:

Fault description
Plausibility check on active tank reduction agent
temperature sensor. The DTC is logged when the difference
between the measured reduction agent temperature and the
outside temperature falls below the limit value -40 �C.

Condition for fault identification
Test condition:
Execution of the error check is contingent upon compliance
with the following conditions:
The outside temperature, the catalyst temperature and the
coolant temperature do not display mutual deviations in
excess of +/- 40 �C.
Voltage condition:
Execution of the error check is contingent upon compliance
with the following conditions:
The outside temperature, the catalyst temperature and the
coolant temperature do not display mutual deviations in
excess of +/- 40 �C.

Condition for fault memory entry
Debounce (2000 ms)

Action in service
1. Use diagnostic system to check temperature sensor for
plausible reading.
2. Replace temperature sensor.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none