SFI SYSTEM(w/ EGR System), Diagnostic DTC:P0365,P0367,P0368,P0390,P0392 and P0393
| 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. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Warning Indicate |
Memory |
|---|---|---|---|---|---|
P0365 |
Camshaft Position Sensor "B" Circuit (Bank 1) |
No VVT sensor signal is sent to the ECM at an engine speed of 600 rpm or more (1 trip detection logic). |
|
Comes on |
DTC stored |
P0367 |
Camshaft Position Sensor "B" Circuit Low Input (Bank 1) |
Output voltage of VVT sensor is below 0.3 V for 4 seconds (1 trip detection logic). |
|
Comes on |
DTC stored |
P0368 |
Camshaft Position Sensor "B" Circuit High Input (Bank 1) |
Output voltage of VVT sensor is higher than 4.7 V for 4 seconds (1 trip detection logic). |
|
Comes on |
DTC stored |
P0390 |
Camshaft Position Sensor "B" Circuit (Bank 2) |
No VVT sensor signal is sent to the ECM at an engine speed of 600 rpm or more (1 trip detection logic). |
|
Comes on |
DTC stored |
P0392 |
Camshaft Position Sensor "B" Circuit Low Input (Bank 2) |
Output voltage of VVT sensor is below 0.3 V for 4 seconds (1 trip detection logic). |
|
Comes on |
DTC stored |
P0393 |
Camshaft Position Sensor "B" Circuit High Input (Bank 2) |
Output voltage of VVT sensor is higher than 4.7 V for 4 seconds (1 trip detection logic). |
|
Comes on |
DTC stored |
-
Reference: Inspection using an oscilloscope
Standard
Tester Connection
Tool Setting
Condition
Specified Condition
C28-6 (NE+) - C28-5 (NE-)
5 V/DIV.
20 msec./DIV.
Cranking or idling
The correct waveform is as shown
C28-13 (EV1+) - C28-14 (EV1-)
5 V/DIV.
20 msec./DIV.
Cranking or idling
The correct waveform is as shown
C28-18 (EV2+) - C28-17 (EV2-)
5 V/DIV.
20 msec./DIV.
Cranking or idling
The correct waveform is as shown
Tip: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.
MONITOR STRATEGY
Required Sensors/Components (Main) |
VVT position sensor (for Bank 1 and 2) |
Required Sensors/Components (Related) |
Crankshaft position sensor |
Frequency of Operation |
Continuous |
CONFIRMATION DRIVING PATTERN
Start the engine and run it at idle for 10 seconds or more.
WIRING DIAGRAM
PROCEDURE
CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE)
-
*A
Bank 1
*B
Bank 2
*a
Front view of wire harness connector
(to VVT Sensor)
Disconnect the VVT sensor connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection
Switch Condition
Specified Condition
3 (VC2) - Body ground
Engine switch on (IG)
4.5 to 5.0 V
Result
Result
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
-
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
Tester Connection
Condition
Specified Condition
C17-1 (EX+) - C28-13 (EV1+)
Always
Below 1 Ω
C17-2 (EX-) - C28-14 (EV1-)
Always
Below 1 Ω
C16-1 (EX+) - C28-18 (EV2+)
Always
Below 1 Ω
C16-2 (EX-) - C28-17 (EV2-)
Always
Below 1 Ω
C17-1 (EX+) or C28-13 (EV1+) - Body ground
Always
10 kΩ or higher
C17-2 (EX-) or C28-14 (EV1-) - Body ground
Always
10 kΩ or higher
C16-1 (EX+) or C28-18 (EV2+) - Body ground
Always
10 kΩ or higher
C16-2 (EX-) or C28-17 (EV2-) - Body ground
Always
10 kΩ or higher
Result
Result
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK SENSOR INSTALLATION (VVT SENSOR FOR EXHAUST CAMSHAFT)
-
Check the VVT sensor installation.
OK
Sensor is installed correctly.
Result
Result
OK
NG
-
INSPECT EXHAUST CAMSHAFT
Check the teeth of the camshaft.
OK
Teeth do not have any cracks or deformation.
Result
Result
OK
NG
REPLACE VVT SENSOR
Replace the VVT sensor.
Result
Result
NEXT
CHECK WHETHER DTC OUTPUT RECURS
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the tester on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCs
Start the engine and idle it for 10 seconds or more.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read DTCs.
Powertrain > Engine and ECT > Trouble Codes
Result
Result
Proceed to
No DTC is output
A
P0365, P0367, P0368, P0390, P0392 or P0393 is output
B
Tip:If the engine does not start, replace the ECM.
A END