P0396moderate severityPowertrain
Camshaft Position Sensor B Circuit High (Bank 2)
on 2000 BMW 528i 2.8L I6 M52 · RWD
What this code means
The PCM sees an abnormally high signal from the camshaft position sensor on bank 2, sensor B. This can throw off valve timing readings and affect fuel and spark control.
Symptoms
- Check engine light on
- Rough or stalling engine
- Reduced power
Common causes
- Faulty camshaft position sensor
- Damaged wiring or connector
- Reluctor/tone ring damage
- Bad PCM
Diagnostic steps
- Scan and confirm code with freeze frame
- Inspect sensor wiring and connectors
- Check sensor signal with scope or meter
- Replace sensor and retest
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