P0390 Toyota Code - Camshaft Position Sensor 'B' Circuit Bank 2
Quick Answer
The P0390 diagnostic trouble code (DTC) for Toyota vehicles refers to the Camshaft Position Sensor 'B' Circuit Bank 2. Common causes include Faulty camshaft position sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning engine control module (ECM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0390 Toyota indicates Camshaft Position Sensor 'B' Circuit Bank 2.
- Common causes
- Common causes include Faulty camshaft position sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning engine control module (ECM).
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0390 Toyota Description
The P0390 diagnostic trouble code (DTC) for Toyota vehicles refers to the Camshaft Position Sensor 'B' Circuit Bank 2. This code indicates a problem with the circuit that controls the camshaft position sensor in the second bank of the engine. The camshaft position sensor plays a crucial role in the engine's operation by monitoring the position of the camshaft relative to the crankshaft. This information is vital for proper fuel injection timing and ignition timing, ensuring optimal engine performance and efficiency.
Common Causes of P0390 Toyota
- Faulty camshaft position sensor
- Damaged wiring or connectors in the sensor circuit
- Malfunctioning engine control module (ECM)
- Timing belt or chain issues
- Engine mechanical problems
Symptoms of P0390 Toyota
- Engine misfires
- Rough idling
- Hesitation during acceleration
- Decreased fuel efficiency
- Engine may fail to start
How to Fix P0390 Toyota
- Retrieve the DTCs using a diagnostic scan tool to confirm the presence of the P0390 code.
- Inspect the camshaft position sensor and its wiring for any visible damage or corrosion.
- Test the camshaft position sensor using a multimeter to check for proper resistance and voltage output.
- Replace the camshaft position sensor if it fails testing, ensuring proper installation and reconnection of wiring.
- Clear the DTCs and perform a test drive to verify that the issue has been resolved.
Cost to Fix P0390 Toyota
The cost of repairing the Camshaft Position Sensor 'B' Circuit Bank 2 issue can vary depending on the specific cause of the problem and the labor rates at the repair shop. In general, the cost of replacing the camshaft position sensor itself can range from $50 to $200, while the labor cost for the repair can add another $100 to $200. Overall, the total repair cost for addressing the P0390 code may fall between $150 and $400. However, it's important to note that these estimates are rough averages, and actual costs may differ based on location, vehicle make and model, and the extent of the repair needed. It's recommended to obtain a detailed quote from a trusted auto repair shop to get a more accurate cost estimate.
Tech Notes for P0390 Toyota
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