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 / Active Test / Control the IAC Duty Ratio / All Data / 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 Failure Area
   		IAC1 circuit shorted VCIA circuit open	VCIA and IAC1 circuits short-circuited IAC1 circuit open EIA1 circuit open	Sensor malfunction
   -100%	0.2 to 1.0 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. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
5. Read the DTCs.
   RESULT
   
   

   Result	Proceed to
   P2014, P2016 and/or P2017 is output again	A
   No DTC is output	B

B → SYSTEM OK 

A → See step   8 

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 (Check for Open)

   Tester Connection	Condition	Specified Condition
   B30-72 (VCIA) - M2-3 (VDD)	Always	Below 1 Ω
   B30-70 (IAC1) - M2-1 (OUT)	Always	Below 1 Ω
   B30-71 (EIA1) - M2-2 (GND)	Always	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Condition	Specified Condition
   B30-72 (VCIA) or M2-3 (VDD) - Body ground	Always	10 kΩ or higher
   B30-70 (IAC1) or M2-1 (OUT) - Body ground	Always	10 kΩ or higher
   B30-71 (EIA1) or M2-2 (GND) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 1: Intake Air Control Valve Actuator Connector Terminal Identification

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
   M2-3 (VDD) - Body ground	Ignition switch ON	4.5 to 5.0 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 TCV). 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. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
5. Read the DTCs.
   RESULT
   
   

   Result	Proceed to
   P2014, P2016 and/or P2017 is output again	A
   No DTC is output	B

B → END 

A → See step   9