P0390
Camshaft Position Sensor B Circuit Bank 2
P0390 is an OBD-II diagnostic trouble code meaning: Camshaft Position Sensor B Circuit Bank 2. Common causes: open or shorted wiring harness, camshaft position sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Difficulty starting
- Power Loss
- Check Engine Light Is On
Causes
- Open or shorted wiring harness
- Camshaft position sensor malfunction
- Oxidized or damaged connectors
- Problems with the grounding system
- Engine control unit malfunction
How to Fix
- Check the integrity of the sensor wiring harness
- Check connectors for oxidation or damage
- Check the resistance and output signal of the sensor
- Replace sensor if necessary
- Check ECU software for updates
Related codes
Error P0390 by Vehicle Brand
FAQ
What does the P0390 code mean?
P0390 is an OBD-II diagnostic trouble code that indicates: Camshaft Position Sensor B Circuit Bank 2
What causes a P0390 error code?
The most common causes of P0390 include: Open or shorted wiring harness; Camshaft position sensor malfunction; Oxidized or damaged connectors; Problems with the grounding system.
How do I fix a P0390 diagnostic trouble code?
To fix P0390: Check the integrity of the sensor wiring harness. Check connectors for oxidation or damage. Check the resistance and output signal of the sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0390?
Limited driving only, diagnose soon
How much does it cost to fix P0390?
The estimated repair cost for P0390 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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