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 / All Data / IAC Sensor Voltage.
4. Check the output voltage 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 voltage output 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 circuit short-circuited IAC1 circuit open EIA1 circuit open	Sensor malfunction
   -100%	0.2 to 1.0 V	Remain below 0.2 V	Remain higher than 4.8 V	Other than the voltage in the 2 columns on the left
   100%	3.2 to 4.8 V	Remain below 0.2 V	Remain 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 DTCs. Refer to DTC CHECK / CLEAR .
4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
5. Read DTCs.
   RESULT
   
   

   Display (DTC Output)	Proceed to
   P2014, P2016 and/or P2017 are output again	A
   No output	B

B → SYSTEM OK 

A → See step   8 

Fig 1: Checking Harness And Connector (TCV Position Sensor - ECM)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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) - R4-3 (VDD)	Always	Below 1 Ω
   B30-70 (IAC1) - R4-1 (OUT)	Always	Below 1 Ω
   B30-71 (EIA1) - R4-2 (GND)	Always	Below 1 Ω

   Standard Resistance (Check for short) 

   Tester Connection	Condition	Specified Condition
   B30-72 (VCIA) or R4-3 (VDD) - Body ground	Always	10 kΩ or higher
   B30-70 (IAC1) or R4-1 (OUT) - Body ground	Always	10 kΩ or higher
   B30-71 (EIA1) or R4-2 (GND) - Body ground	Always	10 kΩ or higher

4. Reconnect the intake air control valve actuator connector.
5. Reconnect the ECM connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 2: Identifying Intake Air Control Valve Actuator Connector

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
   R4-3 (VDD) - Body ground	Ignition switch ON	4.5 to 5.0 V

4. Reconnect the intake air control valve actuator connector.

NG → See step   7 

OK: Go to next step 

1. Replace the intake manifold.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 DTCs.Refer to DTC CHECK / CLEAR .
4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
5. Read DTCs.
   RESULT
   
   

   Display (DTC Output)	Proceed to
   P2014, P2016 and/or P2017 are output again	A
   No output	B

B → END 

A → See step   9