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Home / DTC / P0365 — Camshaft Position Sensor B Circuit (Bank 1)

P0365 — Camshaft Position Sensor B Circuit (Bank 1)

Detailed page for trouble code P0365.

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P0365

LAND ROVER P — Powertrain

Camshaft Position Sensor B Circuit (Bank 1)

Brand: LAND ROVER
Type: P — Powertrain
Views: UK: 10 EN: 22 RU: 31
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Page language: EN

Causes

  • Open circuit or broken wiring in camshaft sensor B harness (Bank 1)
  • Short to battery positive (12V) or short to ground in the sensor circuit
  • Corroded, loose or damaged sensor connector/contact
  • Failed camshaft position sensor (sensor B, Bank 1)
  • Oil contamination or mechanical damage to the sensor
  • Faulty ECM or poor engine ground at ECM

Symptoms

  • Malfunction Indicator Lamp (MIL/CEL) illuminated
  • Engine may crank but not start, or hard/no start conditions
  • Rough idle, misfire or hesitation under load
  • Reduced engine performance or limp-home mode
  • Stalling at idle or immediately after starting
  • Erratic tachometer or incorrect cam timing correlation in scan data

What to check

  • Read freeze-frame and live data with a capable scan tool; note related DTCs and cam signal status
  • Visual inspection of harness and connector for damage, oil contamination or corrosion
  • Wiggle test: monitor live camshaft sensor B signal while gently moving wiring to find intermittent faults
  • Check for proper connector engagement and bent pins at sensor and ECU
  • Measure reference voltage and ground at the sensor connector with key ON (engine OFF)
  • Check continuity/resistance between sensor connector and ECM pin(s) for open or short to ground/power

Signal parameters

  • Sensor type may be Hall-effect (digital) or variable reluctance (VR); consult vehicle service manual for type
  • Hall-effect: reference supply typically ~5V; signal is a square/pulse waveform 0–5V (frequency increases with engine speed)
  • VR-type: produces an AC voltage; low RPM values can be a few hundred millivolts AC, rising with speed; waveform is sinusoidal/alternating
  • Typical coil resistance for VR sensors varies by model — check factory spec (do not assume exact ohms without reference)
  • Expected waveform: consistent pulsed/sine waveform synchronized with camshaft rotation; absent, flat or noisy waveform indicates a problem
  • If signal is shorted to 12V or ground, the ECM will report a circuit fault

Diagnostic algorithm

  1. Confirm DTC and capture freeze-frame/live data. Note any related cam/crank codes.
  2. Perform a visual inspection of sensor B (Bank 1) connector and wiring for damage, oil or corrosion. Repair obvious damage.
  3. With key ON (engine OFF) measure reference voltage at the sensor connector (usually ~5V for Hall sensors). Verify good ground.
  4. Check continuity from sensor connector pins to the ECM connector pins. Look for opens, high resistance or shorts to ground/12V.
  5. Backprobe the signal lead while cranking/running. Use a multimeter for basic presence or an oscilloscope for waveform quality and timing.
  6. If signal absent or incorrect, disconnect the sensor and measure sensor resistance (for VR type) or check for internal short (for Hall type) — compare to service specs.
  7. If harness and sensor test OK, swap with the corresponding bank sensor (if applicable and identical) or install a known-good sensor to confirm.
  8. Inspect related mechanical items if signal is present but cam correlation is off (timing chain, cam phaser), but only after electrical circuit is verified.
  9. If wiring, connector and sensor are good but fault persists, suspect ECM driver fault and perform ECU circuit tests per manufacturer procedures before replacement.
  10. Clear codes and perform a road test and re-scan to confirm repair.

Likely causes

  • Damaged wiring or chafed harness near the valve cover or timing cover
  • Connector corrosion or bent terminals at the sensor or ECU plug
  • Failed/contaminated camshaft position sensor (most common)
  • Poor ground or blown fuse affecting the sensor reference
  • Aftermarket or incorrect sensor with wrong output characteristics
  • Intermittent failure due to oil ingress or engine vibration

Fault status

⚠️ Status
Camshaft Position Sensor B Circuit (Bank 1): electrical fault detected — signal missing, shorted to voltage/ground, intermittent, or out of expected range. Inspect sensor, wiring and ECM inputs.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

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P0340 P0341 P0360 P0361 P0362 P0363
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