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Home / DTC / P1350 — VVT Sensor Circuit Malfunction Bank 2

P1350 — VVT Sensor Circuit Malfunction Bank 2

Detailed page for trouble code P1350.

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Code

P1350

LEXUS P — Powertrain

VVT Sensor Circuit Malfunction Bank 2

Brand: LEXUS
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Open or short in VVT/camshaft sensor wiring for Bank 2
  • Corroded, loose or damaged connector at the VVT/camshaft sensor or ECM
  • Faulty VVT sensor or camshaft position sensor (Bank 2)
  • Faulty VVT oil control valve (OCV) or stuck/contaminated oil passages
  • Low engine oil level, degraded oil or oil contamination blocking VVT operation
  • PCM/ECM software or internal fault

Symptoms

  • Check Engine Light (MIL) illuminated
  • Poor engine performance, hesitation or reduced power
  • Rough idle or surging at idle
  • Increased fuel consumption
  • Possible cam timing related noise if mechanical damage present
  • Hard starting or misfire symptoms in severe cases

What to check

  • Read freeze frame and full DTC list; confirm P1350 stored and note conditions (RPM, temp)
  • Check live data: camshaft position/VVT sensor signal for Bank 2 and compare to Bank 1 and crank sensor
  • Inspect sensor connector and wiring for damage, corrosion, poor pins or water intrusion
  • Check engine oil level and oil condition; note service interval and viscosity used
  • Backprobe sensor connector: verify reference voltage (typically 5V) and ground presence
  • Wiggle test harness with engine running while monitoring signal for intermittent faults

Signal parameters

  • Sensor type: typically camshaft position/VVT sensor (Hall or variable reluctance) producing a timed pulse/voltage signal
  • Reference supply: typically 5 V reference from the ECM (verify vehicle-specific)
  • Signal voltage range: approx. 0–5 V (low/high digital pulses for Hall sensors)
  • Signal form: square wave or pulsed waveform that varies with camshaft position and engine speed
  • Frequency: increases with RPM (can reach several kHz at high engine speed); waveform should be regular and consistent with Bank 1

Diagnostic algorithm

  1. Verify vehicle, engine and service history; check for technical service bulletins (TSBs)
  2. Connect a scan tool and record freeze frame and live data for cam/VVT sensor Bank 2 and crank sensor while cranking and at idle
  3. Visually inspect connectors and harness to Bank 2 VVT/cam sensor and OCV; repair any damage or corrosion
  4. Measure reference voltage and ground at the sensor connector with key on (engine off); confirm correct values per factory spec
  5. Backprobe the signal wire with scope or multimeter while cranking/idle; verify waveform frequency, amplitude and consistency and compare to Bank 1
  6. If wiring and connector are good but no correct signal, disconnect sensor and measure sensor resistance (if applicable) and substitute a known-good sensor if available
  7. Inspect and test the Bank 2 oil control valve (OCV): check coil resistance, apply voltage/pulse to confirm movement and confirm oil passages are not clogged
  8. Check oil level and condition; if oil is dirty or viscosity is wrong, perform oil change and retest
  9. If mechanical timing or actuator damage is suspected (large cam/crank correlation error), perform cam/crank correlation tests and inspect timing chain/belt and VVT actuator hardware
  10. Clear codes and perform a road/drive cycle to confirm repair; if code returns, escalate to PCM tests or consult manufacturer diagnostics/TSBs

Likely causes

  • Wiring harness rubbed/chafed causing intermittent short to ground or battery
  • Corrosion or poor pin contact at sensor connector (common after water ingress)
  • Oil control valve stuck from dirty oil or deposits preventing VVT operation
  • Failed camshaft position sensor or VVT actuator on Bank 2

Fault status

⚠️ Status
PCM detected improper or missing VVT/camshaft position signal for Bank 2. Diagnostic trouble code P1350 set and MIL may be illuminated. Investigate sensor/OCV, wiring, oil condition, and cam timing components.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 3.0 hours

Similar codes

P0341 P0015 P0022 P0016 P0017
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