2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 32
Condition for fault identification
Test condition:
EGS detected
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
400 ms
Action in service
Check EGS / CAN link to EGS control module
Fault effect and breakdown warning
Driver information
Warning light:
MIL ON
Service instruction
none
2AAB
2AAB - P14C2
Information saved in
DME
Fault code
2AAB - P14C2
Fault text
Variable intake system, self-diagnosis
Fault description
DISA (Differentiated Intake Manifold) Actuator 1
Mechanical or Hardware Defect
Condition for fault identification
Test condition:
Monitoring of DISA controller
(large valve)
Engine speed > 500 rpm
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
Valve must lock up mechanically 10 times in succession.
(5x open and 5x closed)
Action in service
Replace large DISA valve
Fault effect and breakdown warning
