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Home >> Lexus >> 2007 >> IS 250 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (4GR-FSE) - DTC P0607 - DTC P2A03, DTC U0101 >> 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) >> Description
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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): Description

The Swirl Control Valve (SCV) position sensor is a non-contact type.

The position sensor measures the opening angle of the SCV. The sensor is reliable and accurate, as it is electrically controlled by Hall elements.

The ECM's IAC1 terminal voltage increases in correlation with the opening angle of the SCV. When the SCV is fully closed, approximately 0.6 V is applied to the IAC1 terminal. When the SCV is fully open, approximately 3.6 V is applied to the IAC1 terminal.

When the output voltage of the IAC1 terminal deviates from the standard range, the ECM determines that a malfunction has occurred in the position sensor and outputs a DTC.

Fig 1: Swirl Control Valve Position Sensor Output Voltage Graph
G05316510Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC DETECTION CONNECTION AND TROUBLE AREA

DTC No. DTC Detection Connection Trouble Area
P2014 SCV position sensor output voltage flutters up and down beyond the normal operating range (Less than 0.2 V or more than 4.8 V for more than 0.5 seconds)
(Open or short)
  • Open or short in SCV position sensor circuit
  • SCV position sensor
  • ECM
P2016 SCV position sensor output voltage is less than 0.2 V for more than 0.5 seconds (Short) Same as DTC No. P2014
P2017 SCV position sensor output voltage is more than 4.8 V for more than 0.5 seconds (Open) Same as DTC No. P2014

HINT:

After confirming DTC P2014, P2016 or P2017, use the intelligent tester to confirm the SCV ANG SENS D4 (SCV position sensor output voltage) from DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL.

VOLTAGE SPECIFICATION

SCV ANG SENS D4 Malfunction
0.2 V or less
  • IAC1 circuit short
  • VC circuit open
4.8 V or more
  • VC and IAC1 circuit short-circuited
  • IAC1 circuit open
  • E2 circuit open