4B2E

4B2E - P0489

Information saved in
DDE

Fault code
4B2E - P0489

Fault text
DDE: Exhaust-gas recirculation controller, output 1 (DC+),
activation: Short circuit to ground

Fault description
The DDE recognizes a short circuit to ground at the positive
output of output stage:
EGR actuator.

Condition for fault identification
Test condition:
The test routine is implemented each time process runs.
Voltage condition:
The test routine is implemented each time process runs.

Condition for fault memory entry
Debounce (220 ms)

Action in service
1. Check wires and plug connections.
(Short circuit)
2. If wiring and plug connections are OK:
Replace EGR actuator.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL_SVS

Service instruction
With some engine versions the appropriate service function
must be used to reset the EGR valve's adaptation before the
EGR valve is replaced.