P0367

DTC P0365 Camshaft Position Sensor "B" Circuit (Bank 1)
DTC P0367 Camshaft Position Sensor "B" Circuit Low Input (Bank 1)
DTC P0368 Camshaft Position Sensor "B" Circuit High Input (Bank 1)
DTC P0390 Camshaft Position Sensor "B" Circuit (Bank 2)
DTC P0392 Camshaft Position Sensor "B" Circuit Low Input (Bank 2)
DTC P0393 Camshaft Position Sensor "B" Circuit High Input (Bank 2)

DESCRIPTION

DTC Detection Conditions:

The exhaust camshaft's Variable Valve Timing (VVT) sensor (G signal) consists of a magnet and MRE element.

The exhaust camshaft has a sensor plate with 3 teeth on its outer circumference.

When the exhaust camshaft rotates, changes occur in the air gaps between the 3 teeth and pickup coil, which affects the magnet. As a result, the resistance of the MRE material fluctuates. The VVT sensor converts the exhaust camshaft rotation data to pulse signals, and uses the pulse signals to determine the camshaft angle, which it sends to the ECM. Then the ECM uses this data to control fuel injection time and injection timing. The crankshaft angle sensor plate has 34 teeth. The pickup coil generates 34 signals for each engine revolution. Based the G signal and actual crankshaft angle, the ECM detects the normal crankshaft angle. Also, based on the NE signal, the ECM detects the engine speed.

Reference: Inspection using an oscilloscope

HINT:
- The correct waveform is shown.
- EV1+ and EV2+ stand for the VVT sensor signal, and NE+ stands for the CKP sensor signal.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Component Operating Range:

If no signal is transmitted by the VVT sensor despite the engine revolting, or the rotations of the camshaft and the crankshaft are not synchronized, the ECM interprets this as a malfunction of the sensor.

Wiring Diagram:

Step 1-2:

Step 3-4:

Step 5:

INSPECTION PROCEDURE

HINT: Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.