DTC P0220-15: Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open [11/2017 - ]: Procedure

1. Disconnect the throttle body with motor 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
   F21-4 (VTA2) - F87-89 (VTA2)	Always	Below 1 Ω
   F21-5 (VC) or F87-121 (VCTA) - Other terminals	Always	10 kΩ or higher
   F21-4 (VTA2) or F87-89 (VTA2) - 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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   F21-5 (VC) - F21-3 (E2)	Engine switch on (IG)	4.5 to 5.5 V
   F21-4 (VTA2) - F21-3 (E2)	Engine switch on (IG)	3.0 to 5.0 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ECM. Refer to  REMOVAL [11/2017 - ] 

Result: 

OK 

See step  3

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F21-5 (VC) - F21-4 (VTA2)	Engine switch off	190 to 210 kΩ

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ECM. Refer to  REMOVAL [11/2017 - ] 

Result: 

OK 

See step  4

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the throttle body with motor assembly connector.
2. Connect the Techstream to the DLC3.
3. Turn the engine 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 engine switch off.
8. Turn the Techstream off.
9. Connect terminals 4 (VTA2) and 3 (E2) of the throttle body with motor assembly connector on the wire harness side.
   NOTE:

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

10. Turn the engine switch on (IG).
11. Turn the Techstream on.
12. 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

13. 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 with motor assembly connector was connected.

    Result

    Result	Proceed to
    Changes from higher than 4.75 V to less than 2.05 V	A
    Does not change from higher than 4.75 V	B

    HINT: 

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

    Refer to INITIALIZATION [11/2017 - 10/2018] , or refer to INITIALIZATION [10/2018 - 09/2020] , or refer to INITIALIZATION [09/2020 - ]

Result: 

A 

REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY. Refer to  REMOVAL [11/2017 - ] 

Result: 

B 

REPLACE ECM. Refer to  REMOVAL [11/2017 - ]