Inspection procedure 27: Purge Control Solenoid Valve System




OPERATION



FUNCTION



PROBABLE CAUSE



DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III actuator test

  • Item 08: Purge control solenoid valve
OK: Operating sound can be heard and the valve vibrates

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

STEP 2. Connector check: B-01 purge control solenoid valve connector

Q. Is the check result normal?

Go to Step 3 .

Repair or replace.

STEP 3: Perform resistance measurement at B-01 purge control solenoid valve connector.


  • Disconnect connector, and measure at solenoid valve side.
  • Resistance between terminal No. 1 and No. 2.
OK: 30 - 34 Ω (at 20°C)

Q. Is the check result normal?

Go to Step 4 .

Replace purge control solenoid valve.

STEP 4. Perform voltage measurement at B-01 purge control solenoid valve connector.


  • Disconnect connector, and measure at harness side.
  • Ignition switch: ON
  • Voltage between terminal No. 2 and earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 6 .

Go to Step 5 .

STEP 5. Connector check: B-15X engine control relay connector


Q. Is the check result normal?


    Check intermediate connector C-116, and repair if necessary. If intermediate connector is normal, check and repair harness between B-01 (terminal No. 2) purge control solenoid valve connector and B-15X (terminal No. 1) engine control relay connector.

    • Check power line for open/short circuit.

Repair or replace.

STEP 6. Connector check: C-110 engine-ECU <M/T> connector or engine-A/T-ECU <A/T> connector

Q. Is the check result normal?

Go to Step 7 .

Repair or replace.

STEP 7. Perform voltage measurement at C-110 engine-ECU <M/T> connector or engine-A/T-ECU <A/T> connector.



  • Disconnect connector, and measure at harness side.
  • Ignition switch: ON
  • Voltage between terminal No. 23 and earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 8 .


    Check and repair harness between B-01 (terminal No. 1) purge control solenoid valve connector and C-110 (terminal No. 23) engine-ECU <M/T> connector or engine-A/T-ECU <A/T> connector.

    • Check output line for open/short circuit.

STEP 8. Check harness between B-01 (terminal No. 1) purge control solenoid valve connector and C-110 (terminal No. 23) engine-ECU <M/T> connector or engine-A/T-ECU <A/T> connector.



  • Check output line for damage.

Q. Is the check result normal?

Go to Step 9 .

Repair.

STEP 9. Check harness between B-01 (terminal No. 2) purge control solenoid valve connector and B-15X (terminal No. 1) engine control relay connector.


note Before checking harness, check intermediate connector C-116, and repair if necessary.

  • Check power line for damage.

Q. Is the check result normal?

Go to Step 10 .

Repair.

STEP 10. M.U.T.-III actuator test

  • Item 08: purge control solenoid valve
OK: Operating sound can be heard and the valve vibrates

Q. Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points ).
Replace engine-ECU <M/T> or engine-A/T-ECU <A/T>.