Code No. P0335: Crank Angle Sensor System




OPERATION



FUNCTION



TROUBLE JUDGMENT


Check Condition
Judgment Criterion

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

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

  • Refer to Data List Reference Table .

    1. Item No. 3: 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: A-125 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 A-125 crank angle sensor connector.


  • Disconnect connector, and measure at harness side.
  • Ignition switch: ON
  • Voltage between terminal No. 2 and earth.
OK: 4.9 - 5.1 V

Q. Is the check result normal?

Go to Step 9 .

Go to Step 4 .

STEP 4. Perform voltage measurement at A-08 engine-ECU connector.



  • Disconnect engine-ECU connector, and connect special tool power plant ECU check harness (MB991987), and then measure the voltage on the check connector.
  • Disconnect A-125 crank angle sensor connector.
  • Ignition switch: ON
  • Voltage between terminal No. 13 and earth.
OK: 4.9 - 5.1 V

Q. Is the check result normal?

Go to Step 5 .

Go to Step 6 .

STEP 5. Connector check: A-08 engine-ECU connector


Q. Is the check result normal?


    Check and repair harness between A-125 (terminal No. 2) crank angle sensor connector and A-08 (terminal No. 13) engine-ECU connector.

    • Check output line for open circuit.

Repair or replace the connector.

STEP 6. Connector check: A-08 engine-ECU connector

Q. Is the check result normal?

Go to Step 7 .

Repair or replace the connector.

STEP 7. Check harness between A-125 (terminal No. 2) crank angle sensor connector and A-08 (terminal No. 13) engine-ECU connector.



  • Check output line for short circuit.

Q. Is the check result normal?

Go to Step 8 .

Repair or replace the connector.

STEP 8. M.U.T.-III data list

  • Refer to Data List Reference Table .

    1. Item No. 3: 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 then perform the variant coding (Refer to GROUP 00 - Precautions Before Service - How to Perform Variant Coding ).

STEP 9. Perform voltage measurement at A-125 crank angle sensor connector.


  • Disconnect connector, and measure at harness side.
  • Ignition switch: ON
  • Voltage between terminal No. 3 and earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 11 .

Go to Step 10 .

STEP 10. Connector check: B-206 engine control relay connector


Q. Is the check result normal?


    Check intermediate connectors A-13 and B-212, and repair if necessary. If intermediate connectors are normal, check and repair harness between A-125 (terminal No. 3) crank angle sensor connector and B-206 (terminal No. 4) engine control relay connector.

    • Check power supply line for open/short circuit.

Repair or replace the connector.

STEP 11. Perform resistance measurement at A-125 crank angle sensor connector.


  • Disconnect connector, and measure at harness side.
  • Resistance between terminal No. 1 and earth.
OK: Continuity (2 Ω or less)

Q. Is the check result normal?

Go to Step 14 .

Go to Step 12 .

STEP 12. Connector check: A-08 engine-ECU connector

Q. Is the check result normal?

Go to Step 13 .

Repair or replace the connector.

STEP 13. Check harness between A-125 (terminal No. 1) crank angle sensor connector and A-08 (terminal No. 28) engine-ECU connector.



  • Check earthing line for open circuit and damage.

Q. Is the check result normal?

Go to Step 8 .

Repair the damaged harness wire.

STEP 14. Perform output wave pattern measurement at A-125 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: Neutral
  • Voltage between terminal No. 2 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 with no noise in waveform.

Q. Is the check result normal?

Go to Step 8 .

Go to Step 15 .

STEP 15. Connector check: B-206 engine control relay connector

Q. Is the check result normal?

Go to Step 16 .

Repair or replace the connector.

STEP 16. Check harness between A-125 (terminal No. 3) crank angle sensor connector and B-206 (terminal No. 4) engine control relay connector.


note Before checking harness, check intermediate connectors A-13 and B-212, and repair if necessary.

  • Check power supply line for damage.

Q. Is the check result normal?

Go to Step 17 .

Repair the damaged harness wire.

STEP 17. Connector check: A-08 engine-ECU connector

Q. Is the check result normal?

Go to Step 18 .

Repair the damaged harness wire.

STEP 18. Check harness between A-125 (terminal No. 2) crank angle sensor connector and A-08 (terminal No. 13) engine-ECU connector.



  • Check output line for damage.

Q. Is the check result normal?

Go to Step 21 <Vehicles without AS&G system>, Go to Step 19 <Vehicles with AS&G system>

Repair the damaged harness wire.

STEP 19. Connector check: B-220 starter control relay connector and A-09 engine-ECU connector


Q. Are the check results normal?

Go to Step 20 .

Repair or replace the connector.

STEP 20. Check harness between B-220 (terminal No. 4) starter control relay connector and A-09 (terminal No. 120) engine-ECU connector.


note Before checking harness, check intermediate connectors A-231, B-117 and A-13, and repair if necessary.

  • Check output line for open/short circuit and damage.

Q. Is the check result normal?

Go to Step 21 .

Repair the damaged harness wire.

STEP 21. Check the crankshaft sensing ring.

Q. Is the check result normal?

Go to Step 22 .
Replace the crankshaft sensing ring.

STEP 22. M.U.T.-III data list

  • Refer to Data list reference table .

    1. Item No. 3: 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 crank angle sensor.