4236 - P0607 (DDE)

4236 - P0607

Information saved in
DDE

Fault code
4236 - P0607

Fault text
DDE: DDE control unit internal (LSU calibration): Offset of
lambda signal evaluation too low (zero-point correction)

Fault description
The diagnostic trouble code is logged in the ECU when the
raw voltage signal for the O2 ratio falls below the limit
value -200 mV during the oxygen signal calibration routine.

Condition for fault identification
Test condition:
The test runs only when the calibration function is active.
Check frequency is then continuous in accordance with the
programmed time grid.
Voltage condition:
The test runs only when the calibration function is active.
Check frequency is then continuous in accordance with the
programmed time grid.

Condition for fault memory entry
Event debounced (10) Event debounce with the counter limit
10 for defect detection as. In the service test diagnosis the
debounce is divided by the factor 2.

Action in service
Replace DDE control module.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none