2A9B - P0366

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

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2A9B

2A9B - P0366

Information saved in

DME

Fault code

2A9B - P0366

Fault text

Camshaft sensor, exhaust, signal

Fault description

Camshaft Position Sensor 'B' Circuit Range/Performance (Bank 1)

Condition for fault identification

Test condition:

Engine turns over, synchronization with NWE fails Terminal condition: Terminal 15 on

Voltage condition: none

Condition for fault memory entry

On every camshaft flank when the flank was outside tolerance. At engine start only.

Action in service

Check signal wire for short to positive, ground, open wire.

Replace camshaft sensor.

Check positions (valve timing setting) of camshaft reluctors

Check timing chain and chain tensioner assembly.

Check VANOS solenoids for dirt and contamination

Fault effect and breakdown warning

Driver information

Warning light:

Nothing, as double fault is present