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): Description
The exhaust camshaft position sensor (EV1 signal) consists of a magnet and MRE (Magnetoresistive Element).
The exhaust camshaft has 3 teeth on its outer circumference. When the exhaust camshaft rotates, changes occur in the air gaps between the 3 teeth and MRE, which affects the magnetic field. As a result, the resistance of the MRE fluctuates. The camshaft position sensor converts the exhaust camshaft rotation data into pulse signals, uses the pulse signals to determine the camshaft angle, and sends the data to the ECM.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0365 | No camshaft position sensor signal is sent to the ECM at an engine speed of 600 RPM or more (1 trip detection logic). |
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| P0367 | Output voltage of camshaft position sensor is below 0.3 V for 4 seconds (1 trip detection logic). |
|
| P0368 | Output voltage of camshaft position sensor is higher than 4.7 V for 4 seconds (1 trip detection logic). |
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- Reference: Inspection using an oscilloscope.
HINT:
- G2 stands for the camshaft position sensor signal, NE stands for the crankshaft position sensor signal and EV1 stands for the camshaft position sensor (for exhaust side) signal.
- Grounding failure of the shielded wire may cause noise in waveforms.
Tester Connection Tool Setting Condition Specified Condition B30-74 (NE+) - B30-120 (NE-) 5 V/DIV, 20 ms/DIV Idling The correct waveform is as shown B30-76 (G2+) - B30-122 (G2-) 5 V/DIV, 20 ms/DIV Idling The correct waveform is as shown B30-75 (EV1+) - B30-121 (EV1-) 5 V/DIV, 20 ms/DIV Idling The correct waveform is as shown