Code No. P0335: Crank Angle Sensor System








OPERATION



  • Power is supplied to the crank angle sensor (terminal No. 1) from the engine-ECU (terminal No. 9) and is earthed to the engine-ECU (terminal No. 24) from the crank angle sensor (terminal No. 2).
  • A power voltage of 5 V is applied to the crank angle sensor (terminal No. 3) from the engine-ECU (terminal No. 8).

FUNCTION



  • The crank angle sensor detects the crank angle and inputs a pulse signal to the engine-ECU.
  • In response to the signal, the engine-ECU controls the injector, etc.

TROUBLE JUDGMENT


Check Condition
  • Engine is being cranked.
Judgement Criterion
  • There is no pulse signal input from the crank angle sensor, and a pulse signal of the inlet camshaft position sensor is detected 10 times or more.
Check Condition
  • Engine is running.
Judgement Criteria
  • A pulse signal from the crank angle sensor continues 264 times and engine speed is less than 440 r/min.
  • A crank angle sensor signal pattern is not normal.
  • Malfunction is detected twice or more since the ignition switch is turned ON.
Check Condition
  • Engine is running.
Judgement Criterion
  • A crank angle sensor signal pattern is not normal for 2 seconds and engine speed is more than 440 r/min.
FAIL-SAFE AND BACKUP FUNCTION
  • None.

PROBABLE CAUSES



  • Failed crank angle sensor
  • Open/short circuit or harness damage in crank angle sensor circuit or loose connector contact
  • Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list

  • Refer to Data List Reference Table .

  1. Item 2: Crank angle sensor

Q. Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
Go to Step 2.

STEP 2. Connector check: B-15 crank angle sensor connector

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

STEP 3. Perform voltage measurement at B-15 crank angle sensor connector.

  • Disconnect connector, and measure at harness side.
  • Ignition switch: ON
  • Voltage between terminal No. 3 and earth.
OK: 4.9 - 5.1 V

Q. Is the check result normal?
Go to Step 7.
Go to Step 4.

STEP 4. Connector check: B-08 engine-ECU connector

Q. Is the check result normal?
Go to Step 5.
Repair or replace the connector.

STEP 5. Check harness between B-15 (terminal No. 3) crank angle sensor connector and B-08 (terminal No. 8) engine-ECU connector.

  • Check output line for open/short circuit.

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

STEP 6. M.U.T.-III data list

  • Refer to Data List Reference Table .

  1. Item 2: Crank angle sensor

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

STEP 7. Perform voltage measurement at B-15 crank angle sensor connector.

  • Disconnect connector, and measure at harness side.
  • Ignition switch: ON
  • Voltage between terminal No. 1 and earth.
OK: 4.9 - 5.1 V

Q. Is the check result normal?
Go to Step 10.
Go to Step 8.

STEP 8. Connector check: B-08 engine-ECU connector

Q. Is the check result normal?
Go to Step 9.
Repair or replace the connector.

STEP 9. Check harness between B-15 (terminal No. 1) crank angle sensor connector and B-08 (terminal No. 9) engine-ECU connector.

  • Check power supply line for open/short circuit.

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

STEP 10. Perform resistance measurement at B-15 crank angle sensor connector.

  • Disconnect connector, and measure at harness side.
  • Resistance between terminal No. 2 and earth.
OK: Continuity (2 Ω or less)

Q. Is the check result normal?
Go to Step 13.
Go to Step 11.

STEP 11. Connector check: B-08 engine-ECU connector

Q. Is the check result normal?
Go to Step 12.
Repair or replace the connector.

STEP 12. Check harness between B-15 (terminal No. 2) crank angle sensor connector and B-08 (terminal No. 24) engine-ECU connector.

  • Check earthing line for open circuit and damage.

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

STEP 13. Perform output wave pattern measurement at B-15 crank angle sensor connector (Using an oscilloscope).

  • Use special tool test harness (MB991709) to connect connector, and measure at pick-up harness.
  • Engine: Idling
  • Transmission: P range
  • Voltage between terminal No. 3 and earth.
OK: Waveforms should be displayed on inspection procedure using an oscilloscope (Refer to ), its maximum value should be 4.8 V or more, and its minimum value should be 0.6 V or less. There must be no noise in the output wave pattern.

Q. Is the check result normal?
Go to Step 6.
Go to Step 14.

STEP 14. Connector check: B-08 engine-ECU connector

Q. Is the check result normal?
Go to Step 15.
Repair or replace the connector.

STEP 15. Check harness between B-15 (terminal No. 1) crank angle sensor connector and B-08 (terminal No. 9) engine-ECU connector.

  • Check power supply line for damage.

Q. Is the check result normal?
Go to Step 16.
Repair the damaged harness wire.

STEP 16. Check harness between B-15 (terminal No. 3) crank angle sensor connector and B-08 (terminal No. 8) engine-ECU connector.

  • Check output line for damage.

Q. Is the check result normal?
Go to Step 17.
Repair the damaged harness wire.

STEP 17. Replace the crank angle sensor

  • After replacing the crank angle sensor, reconfirm whether the diagnosis code is set.

Q. Is the diagnosis code set?
Replace the crank angle sensor sensing ring.
Check end.