2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 47
Terminal condition: none
Voltage condition:
none
Condition for fault memory entry
none
Action in service
Flash program correct software revision.
Fault effect and breakdown warning
Driver information
Warning light:
none
Service instruction
none
2AB4
2AB4 – P16A3
Information saved in
DME
Fault code
2AB4 – P16A3
Fault text
DME, internal fault: RAM checksum
Fault description
Internal Control Module Non-Volatile Memory (NVMY)
Error
Condition for fault identification
Test condition:
RAM checksum test
This test is executed once, while the control module is
booting.
Terminal condition: Immediately after wakeup in dormant
control module
Voltage condition:
none
Condition for fault memory entry
No debounce. Fault can be reset by clearing fault memory.
Action in service
Start by checking ground connections on the ignition coils.
If these are OK, proceed with the following steps.
Check to determine whether the diagnostic fault code is
stored again after proceeding through the following routine.
If yes: Replace DME.
1. Clear fault memory
2. Ignition off, allow vehicle to assume complete dormant
status
3. Ignition on
4. Read out stored fault codes from fault memory
Fault effect and breakdown warning
