Code No. P2100: Throttle Valve Control Servo Circuit (open)




OPERATION




FUNCTION




TROUBLE JUDGEMENT


Check Conditions
Judgement Criterion
or


FAIL-SAFE AND BACKUP FUNCTION




PROBABLE CAUSES




DIAGNOSIS PROCEDURE


STEP 1. Check throttle valve control servo itself.



  • Throttle valve control servo check (Refer to ).

Q. Is the check result normal?

Go to Step 2.
Replace the throttle body assembly.

STEP 2. Perform resistance measurement at engine-ECU connector.



  • Disconnect connector, and measure at harness side.
  • Resistance between terminal RSG line and body earth.
OK: Continuity (2 Ω or less)

Q. Is the check result normal?

Go to Step 3.

    Repair or replace the connector(s), or check and repair the harness of open circuit, and damage in RSG line between engine-ECU connector and body earth.

STEP 3. Check of open circuit, and damage in ETV+ line between electronic-controlled throttle valve connector and engine-ECU connector.


Q. Is the check result normal?

Go to Step 4.
Repair the connector(s) or wiring harness.

STEP 4. Check of open circuit, and damage in ETV- line between electronic-controlled throttle valve connector and engine-ECU connector.


Q. Is the check result normal?

Go to Step 5.
Repair the connector(s) or wiring harness.

STEP 5. M.U.T.-III diagnosis code



  • Reconfirmation of diagnosis code.

Q. Is 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 ).





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