DTC P0220-15: Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open [12/2021 - ]: Procedure

Pre-procedure1

• Disconnect the throttle body with motor assembly connector.
• Disconnect the ECM connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition
  C177-3 (VTA2) - C37-93 (VTA2)	Always	Below 1 Ω
  C177-2 (VC) or C37-117 (VCTA) - Other terminals	Always	10 kΩ or higher
  C177-3 (VTA2) or C37-93 (VTA2) - Other terminals	Always	10 kΩ or higher

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

Pre-procedure1

• Disconnect the throttle body with motor assembly connector.
• Turn the ignition switch to ON.

• Measure the voltage according to the value(s) in the table below.

  Standard Voltage

  Tester Connection	Condition	Specified Condition
  C177-2 (VC) - C177-4 (E2)	Ignition switch ON	4.5 to 5.5 V
  C177-3 (VTA2) - C177-4 (E2)	Ignition switch ON	3.0 to 5.0 V

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPLACE ECM. Refer to  REMOVAL [12/2021 - ] 

Result: 

OK 

See step  3

Pre-procedure1

• Disconnect the throttle body with motor assembly connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition
  C177-2 (VC) - C177-3 (VTA2)	Ignition switch off	190 to 210 kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPLACE ECM. Refer to  REMOVAL [12/2021 - ] 

Result: 

OK 

See step  4

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Pre-procedure1

• Disconnect the throttle body with motor assembly connector.

• According to the display on the GTS, read the Data List.

  Powertrain > Engine > Data List 

  Tester Display
  Throttle Position Sensor No. 2 Voltage

  HINT: 

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

Post-procedure1

• Turn the ignition switch off.

Pre-procedure2

• Connect terminals 3 (VTA2) and 4 (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 3 (VTA2) and 4 (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.

• 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 [12/2021 - ]

Post-procedure2

• None

Result: 

A 

REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY (THROTTLE WITH THROTTLE POSITION SENSOR BODY ASSEMBLY). Refer to  REMOVAL [12/2021 - ] 

Result: 

B 

REPLACE ECM. Refer to  REMOVAL [12/2021 - ]