Camshaft Position Sensor B Circuit High Input (Bank 2)
The camshaft position sensor on bank 2 is sending a voltage signal that's too high, like a volume knob stuck at maximum. The ECU can't properly time the engine's valve operations because it's receiving bad data from this sensor.
The ECU monitors the analog voltage output from the camshaft position sensor B on bank 2, expecting it to oscillate within a normal range as the cam rotates. When the signal voltage remains abnormally high (typically above 4.5V on a 5V scale), the ECU detects a circuit fault and sets this code.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Sensor Output Voltage | 0.5V - 4.5V (varies by manufacturer) | >4.5V continuously or shorted to power |
| Signal Pattern | Oscillating square wave at engine RPM | Flat/static high voltage, no pattern variation |
Code P0395 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.
Once the fault is repaired, P0395 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.