Lexus LS460 / LS460L ECU 89661-50C20 Engine Control Module OEM Denso

Here is the detailed description and compatibility for the Toyota / Lexus ECU 89661-50C20, specifically used in Lexus LS460 / LS460L:

🔧 Part Number:

Primary OEM: 89661-50C20
Other Part Format: 8966150C20
Manufacturer: DENSO (often paired with a DENSO sub-code on the label)

✅ Part Name:

Engine Control Unit (ECU / ECM / Engine Computer)

📄 Description:

The 89661-50C20 is a genuine Engine Control Module (ECU) designed for high-end Toyota/Lexus models, specifically the Lexus LS460 and LS460L. This unit is responsible for managing critical engine functions such as fuel injection, ignition timing, variable valve timing, and emissions systems.

Application: Luxury full-size sedan with advanced engine and drivetrain control
Engine: 4.6L V8 (1UR-FSE)
Transmission Type: 8-speed Automatic (AWR10LS)
Condition: OEM / Used
Programming Required: ✅ Yes — Must be programmed to the vehicle’s VIN and immobilizer system

🚘 Vehicle Compatibility Table:

Make	Model	Year Range	Engine	Notes
Lexus	LS460	2007 – 2012	4.6L V8 (1UR-FSE)	Base and AWD trims
Lexus	LS460L (Long)	2007 – 2012	4.6L V8 (1UR-FSE)	With extended wheelbase
Toyota	Celsior (JDM)	Some variants	1UR-FSE	Japanese market equivalent (rare)

💡 Always confirm fitment using the VIN or by matching your original ECU’s part number.

⚙️ Programming & Installation Notes:

Requires VIN-specific programming using Toyota Techstream or equivalent tools
Immobilizer/key registration is typically required
Without correct programming, the car may not start or show errors (DTCs)

⚠️ Common Symptoms Requiring ECU Replacement:

No start or intermittent start
Engine misfire or poor performance
Fault codes related to fuel/ignition control (e.g., P0606, P1600)
Water damage or failed ECU circuits

🚘 Vehicle Compatibility Table:

Make	Model	Year Range	Engine	Notes
Lexus	LS460	2007 – 2012	4.6L V8 (1UR-FSE)	Base and AWD trims
Lexus	LS460L (Long)	2007 – 2012	4.6L V8 (1UR-FSE)	With extended wheelbase
Toyota	Celsior (JDM)	Some variants	1UR-FSE	Japanese market equivalent (rare)

💡 Always confirm fitment using the VIN or by matching your original ECU’s part number.

Shipping, returns and warranty

Worldwide shipping with tracking
30-day returns on unused, uninstalled parts
90-day limited warranty against defects

Send us your VIN and we confirm fitment before shipping. See our shipping policy and return policy.

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89661-50C20 ECU Engine Control Module Lexus LS460 LS460L OEM Denso