P0365

2GR-FSE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0365,P0367,P0368,P0390,P0392,P0393: Camshaft Position Sensor "B" Circuit (Bank 1)


DESCRIPTION

The exhaust camshaft's Variable Valve Timing (VVT) sensor (EV1, 2 signal) consists of a magnet and MRE (Magnet Resistance 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 MRE, 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, uses the pulse signals to determine the camshaft angle, and sends it to the ECM.





- Reference: Inspection using an oscilloscope





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






MONITOR DESCRIPTION

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

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

All:





P0365, P0390:





P0367, P0368, P0392, P0393





TYPICAL MALFUNCTION THRESHOLDS

P0365, P0390:





P0367, P0392 (Low voltage):





P0368, P0393 (High voltage):





COMPONENT OPERATING RANGE





WIRING DIAGRAM

Refer to DTC P0335 P0335.

INSPECTION PROCEDURE

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction Freeze Frame Data.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE)

(a) Disconnect the E58 or E66 VVT sensor connector.

(b) Measure the voltage between the terminal of the VVT sensor connector and body ground.

Standard voltage:





(c) Reconnect the VVT sensor connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (VVT SENSOR - ECM)

(a) Disconnect the E58 or E66 VVT sensor connector.

(b) Disconnect the E83 ECM connector.

(c) Measure the resistance.

Standard resistance (Check for open):





Standard resistance (Check for short):





(d) Reconnect the VVT sensor connector.

(e) Reconnect the ECM connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. CHECK SENSOR INSTALLATION (VVT SENSOR FOR EXHAUST CAMSHAFT)

(a) Check the VVT sensor installation.





OK:

Sensor is installed correctly.

NG -- SECURELY REINSTALL SENSOR
OK -- Continue to next step.

4. CHECK EXHAUST CAMSHAFT

(a) Check the teeth of the camshaft.

NG -- REPLACE EXHAUST CAMSHAFT
OK -- Continue to next step.

5. REPLACE VVT SENSOR

NEXT -- Continue to next step.

6. CHECK WHETHER DTC OUTPUT RECURS

(a) Clear the DTCs DTC Check / Clear.

(b) Put the engine inspection mode Inspection Mode Procedure.

(c) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

(f) Read the DTCs.

Result:





HINT
If the engine does not start, replace the ECM.

B -- REPLACE ECM Removal

A -- END