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
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