DTC P2014: Intake Manifold Runner Position Sensor / Switch Circuit (Bank 1); DTC P2016: Intake Manifold Runner Position Sensor / Switch Circuit Low (Bank 1); DTC P2017: Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 1): Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the IAC Duty Ratio / Gas Intake Control / IAC Sensor Voltage.
4. Check the value of IAC Sensor Voltage while changing Control the IAC Duty Ratio from -100 to 100% (or from 100 to -100%) using the Techstream.

   OK

   The value of IAC Sensor Voltage remains between 0.2 and 4.8 V while Control the IAC Duty Ratio is changed from -100 to 100% (or from 100 to -100%).

   HINT:
   
   

   Control the IAC Duty Ratio Operation	IAC Sensor Voltage (Normal)	Suspected Trouble Area
   		IAC1 circuit shorted VCIA circuit open	VCIA and IAC1 circuits shorted IAC1 circuit open EIA1 circuit open	Sensor malfunction
   -100%	0.2 to 1.4 V	Remains below 0.2 V	Remains higher than 4.8 V	Other than the voltage in the 2 columns on the left
   100%	3.2 to 4.8 V	Remains below 0.2 V	Remains higher than 4.8 V

NG → See step   3 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs.Refer to DTC CHECK / CLEAR .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON.
6. Turn the Techstream on.
7. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
9. Read the DTCs.
   RESULT
   
   

   Result	Proceed to
   DTC P2014, P2016 and/or P2017 is output	A
   DTC is not output	B

B → See step   8 

A → See step   9 

1. Disconnect the ECM connector.
2. Disconnect the intake air control valve actuator connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Y4-3 (VDD) - E26-130 (VCIA)	Always	Below 1 Ω
   Y4-1 (OUT) - E26-131 (IAC1)	Always	Below 1 Ω
   Y4-2 (GND) - E26-129 (EIA1)	Always	Below 1 Ω
   Y4-3 (VDD) or E26-130 (VCIA) - Body ground	Always	10 kΩ or higher
   Y4-1 (OUT) or E26-131 (IAC1) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 1: Checking Y4 Intake Air Control Valve Actuator Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the intake air control valve actuator connector.
2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   Y4-3 (VDD) - Body ground	Ignition switch ON	4.5 to 5.5 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Intake Air Control Valve Actuator)

NG → See step   7 

OK: Go to next step 

1. Replace the intake air control valve actuator (for tumble control valve).Refer to REMOVAL .

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs.Refer to DTC CHECK / CLEAR .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON.
6. Turn the Techstream on.
7. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
9. Read the DTCs.
   RESULT
   
   

   Result	Proceed to
   DTC P2014, P2016 and/or P2017 is output	A
   DTC is not output	B

B → END 

A → See step   10