Code No. P0341: Camshaft Position Sensor Range/Performance Problem


OPERATION



  • Refer to Code No. P0340: Camshaft Position Sensor System

FUNCTION



  • The camshaft position sensor detects the top dead centre on the compression stroke of the No. 1 cylinder and inputs a pulse signal to the engine-ECU.

TROUBLE JUDGMENT


Check Conditions
  • Battery positive voltage is 6 - 16 V.
  • Engine speed is 350 r/min or more.
Judgment Criterion
  • The number of output pulses from the camshaft position sensor every 2 engine rotations (from when one excessive tooth is detected to when another is detected) is not 5.

FAIL-SAFE AND BACKUP FUNCTION



  • The rail pressure is controlled in the range between 50 and 100 MPa.
  • The fuel injection amount is restricted (Output restriction).
  • The open angle of the accelerator pedal is restricted.
  • The DPF regeneration is prohibited.
  • The throttle valve is closed (Fixed opening degree).
  • The EGR control is stopped (fully closed).
  • The AS&G control is prohibited.

PROBABLE CAUSES



  • Failed camshaft position sensor
  • Harness damage in camshaft position sensor circuit or loose connector contact
  • Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. Installation check of camshaft position sensor

  • Check whether the camshaft position sensor is correctly installed.

Q. Is the check result normal?
Go to Step 2 .
Repair or replace the camshaft position sensor.

STEP 2. Connector check: B-06 camshaft position sensor connector

Q. Is the check result normal?
Go to Step 3 .
Repair or replace the connector.

STEP 3. Connector check: B-09 engine-ECU connector

Q. Is the check result normal?
Go to Step 4 .
Repair or replace the connector.

STEP 4. Check harness between B-06 (terminal No. 3) camshaft position sensor connector and B-09 (terminal No. 69) engine-ECU connector

  • Check power supply line for damage.

Q. Is the check result normal?
Go to Step 5 .
Repair the damaged harness wire.

STEP 5. Check harness between B-06 (terminal No. 1) camshaft position sensor connector and B-09 (terminal No. 90) engine-ECU connector

  • Check earthing line for damage.

Q. Is the check result normal?
Go to Step 6 .
Repair the damaged harness wire.

STEP 6. Check harness between B-06 (terminal No. 2) camshaft position sensor connector and B-09 (terminal No. 66) engine-ECU connector

  • Check output line for damage.

Q. Is the check result normal?
Go to Step 7 .
Repair the damaged harness wire.

STEP 7. M.U.T.-III diagnosis code

  • Reconfirmation of diagnosis code.

Q. Is the diagnosis code set?
Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).