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P2006LexusLexus GX HubAll Lexus P2006Medium Severity

P2006 on Lexus GX

Intake Manifold Runner Control Stuck Closed (Bank 1)

Factory diagnostic protocol and troubleshooting wire for fault code P2006 specifically for the Lexus GX (2020–2026, 3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460)).

Verified OEM Telemetry & Field Repair Tree
Lexus GX2020–2026
Lexus GX
SUV3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
GX SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. Repair Cost
$150 - $600
Parts & Labor DIY
Check P2006 On Another Lexus Model:
Diagnose P2006 on Specific GX Model Year:

1. Symptoms of P2006 on Lexus GX

When the Engine Control Module (ECM/PCM) on your Lexus GX (3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460)) logs fault code P2006, drivers commonly observe:

Check Engine Light on on Lexus GX (3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460))
Engine feels choked and sluggish above 4,000 RPM on Lexus GX (3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460))
Good low-end torque on Lexus GX (3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460))
Lexus GX OBD-II Port Location
The 16-pin diagnostic connector is located Driver side lower knee panel above dead pedal. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Lexus GX

Historical warranty claims and technical repair bulletins for Lexus GX point to the following failure distribution:

55%
IMRC butterfly valves stuck closed with carbon (Lexus OEM Part)
25%
Broken IMRC actuator motor (Lexus OEM Part)
12%
Vacuum leak (Lexus OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Lexus GX.

3. Step-by-Step DIY Repair Guide for Lexus GX

01
Scan and Record Freeze Frame Telemetry

Connect an OBD-II scan tool and record freeze frame sensor telemetry for code P2006 to note engine RPM, load, and voltage when the fault triggered. on the Lexus GX equipped with 3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460).

Required Tool: OBD-II Scanner
02
Inspect Related Wiring Harness & Connectors

Inspect the electrical connector and wiring harness related to P2006 for chafing, corrosion, moisture, or pin push-out. on the Lexus GX equipped with 3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460).

Required Tool: Flashlight, Multimeter
03
Test Component Resistance & Voltage Supply

Measure circuit voltage supply (12V B+ or 5V reference) and sensor/actuator resistance according to factory repair manual specifications. on the Lexus GX equipped with 3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460).

Required Tool: Digital Multimeter
04
Replace Defective Component

Install a new OEM-grade replacement part, torque fasteners to factory spec, and ensure electrical locking tabs click firmly. on the Lexus GX equipped with 3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460).

Required Tool: Hand Tool Socket Set, Torque Wrench
05
Clear Trouble Codes & Complete Drive Cycle

Clear all stored DTCs from vehicle memory and perform an OBD-II drive cycle to confirm the diagnostic monitor resets to 'Ready'. on the Lexus GX equipped with 3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Lexus GX (P2006)

Prime Fast Delivery & Verified Fitment
Direct-Fit Replacement Part

Lexus GX OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Lexus GX.

$45 – $95 Prime
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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for Lexus GXVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Lexus GX

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Lexus GX:

4. Lexus GX P2006 FAQs

What causes code P2006 to trigger on a Lexus GX?

On the Lexus GX (3.4L Twin-Turbo V6 (V35A-FTS GX 550 349HP) / 4.6L V8 (GX 460)), P2006 is most frequently caused by IMRC butterfly valves stuck closed with carbon or Broken IMRC actuator motor.

Where is the OBD-II port located on my Lexus GX?

On the Lexus GX, the 16-pin DLC diagnostic connector is located Driver side lower knee panel above dead pedal. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Lexus GX with code P2006?

Yes. High-RPM power loss. Given that P2006 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.