P0397moderate severityPowertrain
Camshaft Position Sensor B Circuit (Bank 2 or Single Sensor)
on 2015 Ford F-150 3.5L V6 EcoBoost · RWD
What this code means
The PCM detects a general circuit fault in the camshaft position sensor B for Bank 2. This affects valve timing feedback and engine synchronization.
Symptoms
- Hard starting
- Rough running
- Check engine light on
Common causes
- Faulty camshaft position sensor
- Wiring or connector damage
- Damaged reluctor wheel
- PCM circuit fault
Diagnostic steps
- Scan for cam sensor codes
- Inspect sensor wiring and connector
- Verify sensor air gap and tone ring
- Replace sensor if signal is faulty
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0005
Fuel Shutoff Valve A Control Circuit/Open