2ACB - P0686

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

none

2ACB - P0686 (DME)

2ACB - P0686

Information saved in

DME

Fault code

2ACB - P0686

Fault text

DME master relay, activation

Fault description

ECM/PCM Power Relay Control Circuit Low

Condition for fault identification

Test condition:

Main relay monitoring

Main relay must have opened.

Terminal condition: First Terminal 15 OFF (wait until main relay opens)

then Terminal 15 ON (and leave ON) Voltage condition:

Voltage in onboard electrical system > 10 V

Condition for fault memory entry

none

Action in service

1 Check wiring Repair if defective

If wiring is OK proceed to check component

Fault effect and breakdown warning

Driver information Warning light: none