Monday, July 15, 2019

2E68 - P0328

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



none









2E68 - P0328 (DME)



2E68 - P0328







Information saved in



DME









Fault code



2E68 - P0328









Fault text



Knock-sensor signal 1









Fault description



Knock Sensor 1 Circuit High (Bank 1 or Single Sensor)









Condition for fault identification



Test condition:





Knock sensor signal monitor





Vehicle road operation at >2800 1 rpm (current data status, tends toward >2560 rpm) and air mass > 180 mg/unit. It is not possible to clear fault by switching ignition terminals. Compliance with the activation conditions and absence of malfunction extending over several seconds are required before fault code can be cleard.





Terminal condition: Terminal 15, engine on Voltage condition:





Voltage in onboard electrical system > 10 V









Condition for fault memory entry



Yes, by event counter. If knock sensor signal remains below threshold (differential knock signal > 4.8 V) for 1...3 sec. fault code is stored









Action in service



Check knock sensor connection to verify that it is tight.



Check wire connecting knock sensor 1 and engine- management control module



Check for connection between knock sensor 1 and ground or positive



Replace knock sensor







Fault effect and breakdown warning







Driver information



Warning light:





No warning message. (No closed-loop knock control available. Power loss, as engine reverts to operation in safe range.)

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