| DTC Code | DTC Name |
|---|---|
| P0365 | Camshaft Position Sensor "B" Circuit (Bank 1) |
| P0367 | Camshaft Position Sensor "B" Circuit Low Input (Bank 1) |
| P0368 | Camshaft Position Sensor "B" Circuit High Input (Bank 1) |
| P0390 | Camshaft Position Sensor "B" Circuit (Bank 2) |
| P0392 | Camshaft Position Sensor "B" Circuit Low Input (Bank 2) |
| P0393 | Camshaft Position Sensor "B" Circuit High Input (Bank 2) |
DESCRIPTION
The exhaust camshaft VVT sensor (EV1 and EV2 signals) 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 VVT 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 P0390 |
No VVT sensor signal is sent to the ECM at an engine speed of 600 rpm or more (1 trip detection logic). |
|
| P0367 P0392 |
Output voltage of VVT sensor is below 0.3 V for 4 seconds (1 trip detection logic). |
|
| P0368 P0393 |
Output voltage of VVT sensor is higher than 4.7 V for 4 seconds (1 trip detection logic). |
|
Reference: Inspection using an oscilloscope
| Standard | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
EV1 and EV2 are the VVT sensor signals, and NE is the crankshaft position sensor signal.
MONITOR DESCRIPTION
If no signal is transmitted by the VVT sensor despite the engine running, or the rotations of the camshaft and crankshaft are not synchronized, the ECM interprets this as a malfunction of the sensor.
Also, when the sensor output voltage remains at below 0.3 V, or higher than 4.7 V for more than 4 seconds, the ECM stores a DTC.
INSPECTION PROCEDURE
Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, 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.
Bank 1 refers to the bank that includes the No. 1 cylinder*.
*: The No. 1 cylinder is the cylinder which is farthest from the transmission.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
PROCEDURE
CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE)
Disconnect the VVT sensor connector.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
| *A | Bank 1 |
| *B | Bank 2 |
| *a | Front view of wire harness connector (to VVT Sensor) |
CHECK HARNESS AND CONNECTOR (VVT SENSOR - ECM)
Disconnect the VVT sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
CHECK SENSOR INSTALLATION (VVT SENSOR FOR EXHAUST CAMSHAFT)
Check the VVT sensor installation.
| OK |
|---|
| Sensor is installed correctly. |
INSPECT EXHAUST CAMSHAFT
Check the teeth of the camshaft.
| OK |
|---|
| Teeth do not have any cracks or deformation. |
REPLACE VVT SENSOR
Replace the VVT sensor (Click here).
CHECK WHETHER DTC OUTPUT RECURS
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear DTCs (Click here).
Start the engine and idle it for 10 seconds or more.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
Read DTCs.
| Display (DTC Output) | Proceed to |
|---|---|
| No DTC is output | A |
| P0365, P0367, P0368, P0390, P0392 or P0393 is output | B |
If the engine does not start, replace the ECM.
REPAIR OR REPLACE HARNESS OR CONNECTOR
REPAIR OR REPLACE HARNESS OR CONNECTOR
SECURELY REINSTALL SENSORClick here
REPLACE EXHAUST CAMSHAFTClick here
REPLACE ECMClick here
END