What causes fault code P0368?

• Most likely: Faulty Camshaft Position (CMP) sensor (internal failure) • Likely: Open circuit or corrosion in the sensor ground wire • Possible: Short to voltage (5V or 12V) in the signal wiring harness • Rare: Reluctor ring/tone wheel damage or PCM internal failure

How do you fix fault code P0368?

STEP 1: Visually inspect the sensor connector for corrosion, bent pins, or fluid intrusion. Clean if necessary. STEP 2: Use a multimeter to check for 5V reference voltage and a solid ground (< 0.5 Ohms). A missing ground often causes a 'High' signal. STEP 3: Perform an oscilloscope test to verify the square wave signal while cranking. If signal is stuck high, replace sensor. STEP 4: Replace Camshaft Position Sensor B (Exhaust). Clear codes and perform a drive cycle.

Powertrain (Engine & Gearbox)Standard EOBD

P0368 - Camshaft Position Sensor 'B' Circuit High (Bank 1)

Q: What does fault code P0368 mean?

P0368 is a diagnostic trouble code (DTC) for 'Camshaft Position Sensor B Circuit High (Bank 1)'. This occurs when the Power Train Control Module (PCM) receives a voltage signal from the camshaft position sensor circuit that is consistently higher than the calibrated limit. This typically points to an open circuit (loss of ground) or a short to voltage in the signal wire. Sensor 'B' usually refers to the exhaust camshaft sensor. The PCM uses this signal to determine the exact timing of the engine cycle for fuel injection and ignition timing control.

Q: What are the symptoms of fault code P0368?

• Check engine light (MIL) illumination • Hard starting or no-start condition • Engine hesitation or stalling • Decreased engine performance and fuel economy • Limp home mode activation

Last updated:1 February 2026

Related:CMP, CKP, Kablage och kontaktstycken, Powertrain Control Module (PCM/ECU)

System

Powertrain (Engine & Gearbox)

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Cylinder 1 Misfire Detected

P0302

Cylinder 2 Misfire Detected

P0303

Cylinder 3 Misfire Detected

Technical Description

P0368 is a diagnostic trouble code (DTC) for 'Camshaft Position Sensor B Circuit High (Bank 1)'. This occurs when the Power Train Control Module (PCM) receives a voltage signal from the camshaft position sensor circuit that is consistently higher than the calibrated limit. This typically points to an open circuit (loss of ground) or a short to voltage in the signal wire. Sensor 'B' usually refers to the exhaust camshaft sensor. The PCM uses this signal to determine the exact timing of the engine cycle for fuel injection and ignition timing control.

Possible Causes

Faulty Camshaft Position (CMP) sensor (internal failure)

Open circuit or corrosion in the sensor ground wire

Short to voltage (5V or 12V) in the signal wiring harness

Reluctor ring/tone wheel damage or PCM internal failure

Symptoms

Check engine light (MIL) illumination

Hard starting or no-start condition

Engine hesitation or stalling

Decreased engine performance and fuel economy

Limp home mode activation

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P0368 - Camshaft Position Sensor 'B' Circuit High (Bank 1)

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P0368 - Camshaft Position Sensor 'B' Circuit High (Bank 1)

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