(DME) Condition Engine Stopped

2B4C - P1398

Information saved in
DME

Fault code
2B4C - P1398

Fault text
Bank 1 ionic current control module internal fault

Fault description


Condition for fault identification
Test condition:
Engine stopped with Terminal 87 on for at least
K_Ionenstromsteuerger�t_TIME_MS_Min = 2000 sec.
Terminal condition: Terminal 87
Voltage condition:
9 V

Condition for fault memory entry
Ionic current signal greater than K_AUSS_LP_Max_Offset
= 0.25 V.

Action in service
1. Replace ionic current control module.
2. Check wire E_A_IION1.
3. Replace DME.

Fault effect and breakdown warning
Rough idle / engine rpm limitation displayed / reduced
power / Check Control message / MIL after engine runs 2x

Driver information
Warning light:
No

Service instruction
none