Code No. P0336: Crank Angle Sensor Range/Performance Problem


OPERATION



  • Refer to Code No. P0335: Crank Angle Sensor System

FUNCTION



  • The crank angle sensor detects the crank angle (position) and inputs a pulse signal to the engine-ECU.
  • In response to the signal, the engine-ECU detects the engine speed, controls the fuel injection timing and fuel injection quantity, etc

TROUBLE JUDGMENT


Check Conditions
  • Battery positive voltage is 6 - 16 V.
  • Engine speed is 350 r/min or more.
Judgment Criterion
  • The number of pulses from the crank shaft position sensor per engine rotation is abnormal.

FAIL-SAFE AND BACKUP FUNCTION



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

PROBABLE CAUSES



  • Failed crank angle sensor
  • Harness damage in crank angle sensor circuit or loose connector contact
  • Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. Installation check of crank angle sensor



  • Check whether the crank angle sensor is correctly installed.

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

STEP 2. Connector check: B-111 crank angle 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-111 (terminal No. 1) crank angle sensor connector and B-09 (terminal No. 68) engine-ECU connector
note Before checking harness, check intermediate connector B-114, and repair if necessary.

  • Check power supply line for open/short circuit and damage.

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

STEP 5. Check harness between B-111 (terminal No. 2) crank angle sensor connector and B-09 (terminal No. 91) engine-ECU connector
note Before checking harness, check intermediate connector B-114, and repair if necessary.

  • Check earthing line for open circuit and damage.

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

STEP 6. Check harness between B-111 (terminal No. 3) crank angle sensor connector and B-09 (terminal No. 67) engine-ECU connector
note Before checking harness, check intermediate connector B-114, and repair if necessary.

  • 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 ).