2AB4 - P16A3

2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): 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.

Clear fault memory

Ignition off, allow vehicle to assume complete dormant status

Ignition on

Read out stored fault codes from fault memory

Fault effect and breakdown warning

Driver information Warning light: none