Code No. P2147: Injector Common 1 (Cylinder No. 1 and No. 4) Circuit Earth Short




OPERATION




FUNCTION




TROUBLE JUDGMENT


Check Conditions
Judgment Criterion

FAIL-SAFE AND BACKUP FUNCTION




PROBABLE CAUSES




DIAGNOSIS PROCEDURE


warning A high-tension voltage is flowing between the engine-ECU and the injectors while the engine is running. Handle them carefully to avoid receiving electric shocks from the voltage.

STEP 1. Check harness between engine-ECU connector terminal INJ1 and No. 1 injector connector terminal.



  • Check earthing line for short circuit.

Q. Is the check result normal?

Go to Step 2.
Repair or replace the connector, or repair the damaged harness wire.

STEP 2. Check harness between engine-ECU connector terminal INJ4 and No. 4 injector connector terminal.



  • Check earthing line for short circuit.

Q. Is the check result normal?

Go to Step 3.
Repair or replace the connector, or repair the damaged harness wire.

STEP 3. Check harness between engine-ECU connector terminal I/B1 and No. 1 injector connector terminal.



  • Check power supply line for short circuit.

Q. Is the check result normal?

Go to Step 4.
Repair or replace the connector, or repair the damaged harness wire.

STEP 4. Check harness between engine-ECU connector terminal I/B4 and No. 4 injector connector terminal.



  • Check power supply line for short circuit.

Q. Is the check result normal?

Go to Step 5.
Repair or replace the connector, or repair the damaged harness wire.

STEP 5. Check Injector itself



  • No. 1 injector connector and No. 4 injector connector check.
  • Check No. 1 injector and No. 4 injector itself (Refer to ).

Q. Is the check result normal?

Go to Step 6.
Repair or replace the connector, or replace the injector.

STEP 6. M.U.T.-III diagnosis code.



  • After erasing the diagnosis code through M.U.T.-III, start the engine and confirm whether the diagnosis code is set.

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 ).