DTC P0220-15: Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open [11/2015 - ]: Procedure

1. Disconnect the throttle body assembly connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C4-4 (VTA2) - C31-101 (VTA2)	Always	Below 1 Ω
   C4-5 (VC) or C31-134 (VCTA) - Body ground and other terminals	Always	10 kΩ or higher
   C4-4 (VTA2) or C31-101 (VTA2) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

1. Disconnect the throttle body assembly connector.
2. Turn the power switch on (IG).
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   C4-5 (VC) - C4-3 (E2)	Power switch on (IG)	4.5 to 5.5 V
   C4-4 (VTA2) - C4-3 (E2)	Power switch on (IG)	3.0 to 5.0 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ECM. Refer to  REMOVAL [11/2015 - 12/2018]  , or refer to  REMOVAL [12/2018 - 07/2020]  , or refer to  REMOVAL [07/2020 - ] 

Result: 

OK 

See step  3

1. Disconnect the throttle body assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C4-5 (VC) - C4-4 (VTA2)	Power switch off	190 to 210 kΩ

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ECM. Refer to  REMOVAL [11/2015 - 12/2018]  , or refer to  REMOVAL [12/2018 - 07/2020]  , or refer to  REMOVAL [07/2020 - ] 

Result: 

OK 

See step  4

1. Disconnect the throttle body assembly connector.
2. Connect the Techstream to the DLC3.
3. Turn the power switch on (IG).
4. Turn the Techstream on.
5. Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No. 2 Voltage.

   Powertrain > Engine > Data List 

   Tester Display
   Throttle Position Sensor No. 2 Voltage

6. According to the display on the Techstream, read the Data List.

   HINT: 

   Use the snapshot function to record the value displayed or make a note of it.

7. Turn the power switch off.
8. Turn the Techstream off.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the throttle body assembly connector.
2. Connect terminals 3 (E2) and 4 (VTA2) of the throttle body assembly connector on the wire harness side.
   NOTE:

   If the VTA2 terminal voltage or the resistance between VTA2 and E2 is abnormal and terminals 3 (E2) and 4 (VTA2) of the throttle body assembly connector are connected, excessive current may flow through the circuit. In this case, do not connect the terminals.

3. Connect the Techstream to the DLC3.
4. Turn the power switch on (IG).
5. Turn the Techstream on.
6. Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No. 2 Voltage.

   Powertrain > Engine > Data List 

   Tester Display
   Throttle Position Sensor No. 2 Voltage

7. Compare the vehicle of the Data List item Throttle Position Sensor No. 2 Voltage after the circuit is shorted to the value when the throttle body assembly connector was connected.

   Result

   Result	Proceed to
   The value of Throttle Position Sensor No. 2 Voltage changes from more than 4.75 V to less than 2.05 V	A
   The value of Throttle Position Sensor No. 2 Voltage is more than 4.75 V and does not change	B

Result: 

A 

REPLACE THROTTLE BODY ASSEMBLY 

Refer to REMOVAL [11/2015 - ]

HINT: 

Perform "Inspection After Repair" after replacing the throttle body assembly.

Refer to INITIALIZATION [11/2015 - ]

Result: 

B 

REPLACE ECM. Refer to  REMOVAL [11/2015 - 12/2018]  , or refer to  REMOVAL [12/2018 - 07/2020]  , or refer to  REMOVAL [07/2020 - ]