2015 Camry Replace

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Intake Manifold Runner Control Stuck Open (Bank 1)



Intake Manifold Runner Control Stuck Closed (Bank 1)


The intake manifold runner valve system is mounted on the intake manifold and consists of the intake manifold runner valve (IMRV), the IMRV motor and the IMRV position sensor. The IMRV motor opens and closes the IMRV using multiple gears (See page ES-270 for details). The valve position sensor detects the opening angle of the IMRV (See page ES-275 for details). The IMRV has a groove on its upper portion.

When the IMRV is closed, air flows through a groove into the cylinder from the intake manifold, so that a dynamic air flow or "tumble" air flow is generated in the cylinder. The tumble air flow drastically reduces fuel deposits inside the intake air port and the combustion wall surface inside the cylinder. This improves the combustion efficiency by boosting the air-fuel mixture and air flow turbulence.

The related DTCs are P2009 and P2010 (See page ES-270), and P2014, P2016 and P2017 (See page


Do not disassemble the IMRV and the IMRV motor.

Intake Manifold Runner Valve Assembly Tumble Air Flow

P2004 Camry

Intake Manifold Runner Valve Motor

Intake Manifold Runner Valve

Intake Manifold

Intake Manifold Runner Valve Motor

Intake Manifold Runner Valve

Intake Manifold Runner Valve Position Sensor

Intake Manifold

The ECM fully closes the IMRV during the first idle with the engine coolant temperature more than -10°C (14°F) and less than 60°C (140°F) and the intake air temperature is more than -10°C (14°F) before the engine is warmed up. In other condition, the ECM fully opens the IMRV. Open and closed condition for IMRV:

Temperatures of the engine coolant and the intake air when the engine starting up

Before warming up the engine

When one of the following conditions is met:

(a) Throttle valve opening angle is 1.5° or more.

(c) Engine speed is 3,000 rpm or more.

(d) When the shift lever is in any position other than N.

After warming up the engine

Engine coolant temp. is less than -10°C (14°F) or more than 60°C 140°F) or intake air temp. is less than -10°C (14°F).




Engine coolant temp. is between -10°C (14°F) and 60°C (140°F). Intake air temp. is -10°C (14°F) or more.




IMRV Operation (Normal Condition)


opening angle

Fully open is maintained until the ignition switch is turned off

Fully closed by turning the ignition switch to the ON position with a cold engine

-1 Half

Half-opening angle is maintained when the engine is stopped.

Vehicle Speed

IG switch ON

Shift lever shifted from N to D

Start the vehicle driving

Engine start

IG switch OFF^ Time

IMRV Malfunction Detection

Target opening angle

Driving Motor

IMRV actual opening angle

Fully open

Electricity supply (ON)

DTC P2006 _ Detection timing

DTC P2006 _ Detection timing

P2006 Toyota


Electricity supply (ON)

About 10 seconds

Stuck open

Threshold: 10°


About 10 seconds

DTC P2004 Detection timing



DTC Detection Condition

Trouble Area

P2004 (Stuck open)

When the IMRV opening angle is more than 10° after requesting the IMRV full close (2 trip detection logic)

• IMRV motor circuit

• IMRV position sensor


P2006 (Stuck closed)

When the IMRV opening angle is less than 35° after requesting the IMRV full open (2 trip detection logic)

Same as DTC No. P2004


Related DTCs

P2004: IMRC Valve Stuck Open P2006: IMRC Valve Stuck Closed

Required sensors/components (Main)

IMRC Valve

Required sensors/components (Related)

IAT sensor, ECT sensor

Frequency of operation

Once per driving cycles


10 seconds

MIL operation

2 driving cycles

Sequence operation



Monitor runs whenever following DTCs are not present

P0110 - P0113 (IAT sensor) P0115 - P0118 (ECT sensor)

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