P0367

Code

Generic P — Powertrain

Camshaft Position Sensor B Circuit Low Bank 1

Brand: Generic

Type: P — Powertrain

Views: UK: 30 EN: 145 RU: 57

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Hall/3-wire (common): reference 5 V, ground 0 V, signal: 0–5 V square/pulse; waveform present when cranking/running
VR/2-wire (less common): AC sine voltage; amplitude increases with engine speed (tens to hundreds of millivolts to volts depending on design)
Typical behavior: signal frequency proportional to engine RPM; no or very low amplitude indicates short/open/grounded circuit

Retrieve codes and freeze data; note whether code is continuous or intermittent and any related codes (crankshaft/camshaft mismatch).
Verify battery/charging system is healthy to avoid false low-voltage events.
Perform a visual inspection of the camshaft sensor B connector and harness on bank 1; look for corrosion, bent pins, heat damage, or water intrusion.
With ignition ON (engine off), back-probe connector: check for sensor reference voltage (typically ~5 V) and a good ground. If reference missing, trace to power/PCM.
With key ON/cranking, monitor the signal wire with a multimeter or oscilloscope. Expect a switching square wave (Hall) or AC sine (VR). If signal is low or absent, proceed.
Check continuity from the sensor signal pin to the PCM input pin and test for short to ground or short to battery with key off. Repair any shorts/opens found.
If wiring checks OK, disconnect sensor and measure sensor resistance (if specified) or bench-test according to manufacturer procedure; replace sensor if out of spec.
Repair or replace damaged wiring/connector or sensor as indicated. After repairs, clear codes and perform a test drive to verify the code does not return.
If the fault persists after repairs and wiring/power/ground verified, consider PCM input circuit failure and consult manufacturer procedures before replacing PCM.