Thursday, August 15, 2019

2C7C - P0159

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



none









2C7C



2C7C - P0159







Information saved in



DME









Fault code



2C7C - P0159









Fault text



Oxygen sensor behind catalytic converter 2, signal









Fault description



O2 Sensor Circuit Slow Response (Bank 2 Sensor 2)









Condition for fault identification



Test condition:





O2 sensor behind catalytic converter voltage too high with overrun injection deactivation active; signal sticks at rich Terminal condition: Terminal 15, engine on





Voltage condition: none









Condition for fault memory entry



Voltage > 0.2 V









Action in service



Check wiring



Check plugs



Measure wire resistance against positive and ground



Replace Bank 2 downstream (post-cat) O2 sensor







Fault effect and breakdown warning







Driver information Warning light: MIL ON

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