P0368

Universal

Camshaft Position Sensor B Circuit High Input (Bank 2)

Definition source: General OBD-II reference catalog
Definition verification: Not independently verified for display.
Time: Varies by diagnosis and vehicle | Diagnostic difficulty: Medium
Medium Severity

The engine control module monitors the signal circuit for camshaft position sensor B on bank 2. P0368 means the circuit signal was detected as higher than expected. The sensor helps the module track camshaft position for engine control, but this code does not by itself prove the sensor has failed. Depending on the cause, the vehicle may run poorly or have trouble starting, or show no noticeable symptoms.

Report an error with this code

⚠️ Before You Begin (Safety First)

If the engine stalls, runs very roughly, loses power, or is difficult to control, stop driving when safe and arrange an inspection. If the warning light is on but the vehicle runs normally, drive cautiously and have the fault diagnosed soon. Avoid touching wiring near hot or moving engine parts.

Common Symptoms

  • The check-engine light may turn on because the control module has detected an out-of-range circuit signal.
  • There may be no noticeable change in how the vehicle runs, particularly if the fault is intermittent or the control module can compensate.
  • Starting may become difficult or the engine may run unevenly if the signal problem disrupts engine control.
  • In some cases, the engine may stall or lose power; these symptoms can have other causes and need diagnosis.

Common Causes

  • A damaged, corroded, loose, or contaminated connector can interfere with the sensor circuit.
  • Wiring may be damaged, shorted to a voltage source, or affected by an open circuit or poor electrical connection; the specific effect depends on the circuit design.
  • Camshaft position sensor B may have an internal electrical fault, but the code alone does not confirm sensor failure.
  • A problem with circuit power, ground, or the engine control module may affect the signal and should be checked before replacing parts.
  • A separate camshaft or timing problem may be relevant when supported by other codes or test results, but P0368 identifies a high-input circuit condition.

Diagnostic Steps

  1. Record the codes and any available freeze-frame information before clearing anything; other codes and operating conditions can help identify the cause.
  2. With the engine off and cool, visually inspect the accessible sensor B connector and wiring on bank 2 for looseness, corrosion, damaged insulation, or contact with hot or moving parts. Sensor location varies by vehicle.
  3. If a connector is visibly loose or dirty, follow the vehicle's service information for safe inspection and reconnection; do not force terminals or probe connectors without the correct procedure.
  4. Have the circuit tested with vehicle-specific service information if the code returns or wiring damage is suspected. Avoid replacing the sensor based only on this code.

When to Call a Professional

A technician can review stored codes and freeze-frame data, inspect the sensor connector and wiring, and test the circuit using the vehicle-specific wiring diagram and service information. Signal testing can help distinguish a sensor problem from wiring, connector, power, ground, or control-module issues. Further checks may be needed if other codes or symptoms point to a camshaft timing problem.

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Commonly Asked Questions

Does P0368 prove that camshaft position sensor B needs replacement?

No. It identifies a high-input condition in the sensor B circuit on bank 2. The sensor, wiring, connector, power or ground, and control module may need to be checked before deciding on a repair.

What does “high input” mean here?

The control module detected a circuit signal higher than expected for its monitoring. The code does not specify the exact voltage or prove why the signal was high.

Is sensor B the same as sensor A, or is bank 2 the same as bank 1?

No. The code specifically names sensor B and bank 2. Their locations and identification depend on the vehicle's engine layout, so use model-, year-, and engine-specific service information.

Can I keep driving with P0368?

If the vehicle runs normally, cautious driving to arrange diagnosis may be reasonable. Stop when safe and seek assistance if it stalls, runs very roughly, loses power, or becomes difficult to control.

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