46F9

46F9 - P205C

Information saved in
DDE

Fault code
46F9 - P205C

Fault text
DDE: Reducing-agent active-tank temperature sensor,
signal: Short circuit to ground

Fault description
Active tank temperature sensor monitoring. The diagnostic
trouble code is logged when the raw sensor signal (voltage)
falls below the minimum limit 165 mV.

Condition for fault identification
Test condition:
The test routine is executed only provided that no other
electrical faults are present. The error check proceeds
continuously in the programmed process grid.
Voltage condition:
The test routine is executed only provided that no other
electrical faults are present. The error check proceeds
continuously in the programmed process grid.

Condition for fault memory entry
Debounce (600 ms)

Action in service
1. Check wires and plug connections.
2. If wiring and plug connections are OK:
3. Use diagnostic system to test temperature sensor.
4. Replace sensor

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none