STEP 2. Using scan tool MB991958, check data list item 15: Throttle Position Sensor (sub).
(1) Detach the intake air hose at the throttle body.
(2) Disconnect the connector of the electronic-controlled throttle valve.
(3) Use test harness special tool (MB991658) to connect only terminals No. 3, No. 4, No. 5, and No. 6.
(4) Turn the ignition switch to the "ON" position.
(5) Set scan tool MB991958 to the data reading mode for item 15, Throttle Position Sensor (sub).- Output voltage should be 4,000 millivolts or more when the throttle valve is fully closed with your finger.
- Output voltage should be 1,000 millivolts or less when the throttle valve is fully open with your finger.
(6) Turn the ignition switch to the "LOCK" (OFF) position.
Is the sensor operating properly?
Go to Step 3. Refer to, DTC P0222 - Throttle Position Sensor (sub) Circuit Low Input , DTC P0223 - Throttle Position Sensor (sub) Circuit High Input .