Dtc P2009 Intake Manifold Runner Control Circuit Low (Bank 1)

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fse Engine Control System. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT INTAKE MANIFOLD (DC MOTOR FOR SCV OPERATION)

CHECK HARNESS AND CONNECTOR (ECM - DC MOTOR FOR SCV)

CHECK WHETHER DTC OUTPUT RECURS (DTC P2009 OR P2010)

DTC P2009 Intake Manifold Runner Control Circuit Low (Bank 1)

DTC P2010 Intake Manifold Runner Control Circuit High (Bank 1)


DESCRIPTION

The ECM activates the DC motor for Swirl Control Valve (SCV), which opens and closes SCV. The ECM activates the DC motor based on engine rpm, coolant temperature, engine load signals and other conditions. When the voltage of the DC motor deviates from the standard range, the ECM determines that a malfunction has occurred and outputs a DTC.

DTC No.
DTC Detection Condition
Trouble Area
P2009
P2010
Conditions (a) and (b) continue for 0.5 seconds (1 trip detection logic):
(a) DC motor for SCV output duty is 100 %
(b) DC motor for SCV current is less than 0.35 A
  1. Open or short in DC motor for SCV circuit
  2. Intake manifold (DC motor for SCV)
  3. ECM

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Engine Control System.Sfi System. Dtc P2009 Intake Manifold Runner Control Circuit Low (Bank 1)


INSPECTION PROCEDURE

HINT:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
1.INSPECT INTAKE MANIFOLD (DC MOTOR FOR SCV OPERATION)


NG
REPLACE INTAKE MANIFOLD
OK


2.CHECK HARNESS AND CONNECTOR (ECM - DC MOTOR FOR SCV)
Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Engine Control System.Sfi System. Dtc P2009 Intake Manifold Runner Control Circuit Low (Bank 1)

  1. Disconnect the E64 DC motor for SCV connector.

  1. Disconnect the E45 ECM connector.

  1. Measure the resistance.

    Standard resistance (Check for open):
    Tester Connection
    		Specified Condition
    IA1- (E45-1) - E64-2
    		Below 1 Ω
    IA1+ (E45-2) - E64-1
    		Below 1 Ω
    Standard resistance (Check for short):
    Tester Connection
    		Specified Condition
    IA1- (E45-1) or E64-2 - Body ground
    		10 kΩ or higher
    IA1+ (E45-2) or E64-1 - body ground
    		10 kΩ or higher

  1. Reconnect the ECM connector.

  1. Reconnect the DC motor for SCV connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK WHETHER DTC OUTPUT RECURS (DTC P2009 OR P2010)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the tester ON.

  1. Clear DTCs.

  1. Enter the following menus: Power train / Engine / DTC.

  1. Read DTCs.

    Result:
    Display (DTC Output)
    		Proceed to
    P2009 or P2010
    		A
    No DTC
    		B


B
CHECK FOR INTERMITTENT PROBLEMS
A

REPLACE ECM