Code No. P2101: Throttle Valve Control Servo Magneto Malfunction

OPERATION

Controls the current that is applied from the engine-ECU connector terminals ETV+, ETV- to the electronic-controlled throttle valve.

FUNCTION

Engine-ECU check whether the throttle valve control servo magneto failed.

TROUBLE JUDGEMENT

Check Condition

Battery positive voltage is more than 8.3 V.

Judgement Criterion

The coil current of the throttle valve control servo is more than 8 A.

FAIL-SAFE AND BACKUP FUNCTION

Throttle opening degree position is in default position.

PROBABLE CAUSES

Failed throttle valve control servo.
Short circuit or harness damage in throttle valve control servo circuit or lose connector contact.
Failed engine-ECU

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. Check of short to earth and damage in ETV+ line between electronic-controlled throttle valve connector and engine-ECU connector.

Q. Is the check result normal?

	Go to Step 3.

	Repair the connector(s) or wiring harness.

STEP 3. Check of short to earth 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. M.U.T.-III diagnosis code

Reconfirmation of diagnosis code.

Q. Is diagnosis code stored?

	Replace the engine-ECU.

	Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).