Lexus LS 2001-2006 A650 Transmission Specifications
This document provides a detailed overview of the A650 transmission specifications for the 2001-2006 Lexus LS. It includes critical technical details such as gear ratios, torque capacity, fluid type, and maintenance intervals. These specifications are essential for understanding the transmission's performance, ensuring proper maintenance, and diagnosing issues. Whether you're a technician, enthusiast, or owner, this information is invaluable for optimizing the vehicle's performance and longevity. The guide also highlights compatibility with other models and potential upgrades, making it a comprehensive resource for anyone working with or owning a 2001-2006 Lexus LS.
Overview Specifications
This document provides detailed specifications and technical information about the A650 transmission used in the 2001-2006 Lexus LS models. It is designed to assist technicians, enthusiasts, and owners in understanding the transmission's features, maintenance requirements, and performance characteristics. Use the search and navigation instructions to quickly locate specific details or browse through the sections for comprehensive insights.
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Key Specifications
Transmission Type
5-speed automatic
Maximum Torque Capacity
325 lb-ft
Weight
85 kg (187 lbs)
Fluid Capacity
9.5 liters (10 quarts)
Service Interval
60,000 miles
Available Specifications
Transmission Design
This section covers the design and engineering of the A650 transmission, including its construction, layout, and integration with the Lexus LS drivetrain. Learn about the materials used, weight distribution, and how it enhances vehicle performance.
Transmission Design
This section covers the design and engineering of the A650 transmission, including its construction, layout, and integration with the Lexus LS drivetrain. Learn about the materials used, weight distribution, and how it enhances vehicle performance.
Construction and Materials
- Aluminum alloy casing for reduced weight
- Precision-machined gears for durability
- Sealed design to prevent fluid leaks
- Integrated torque converter for smooth power delivery
Layout and Integration
- Longitudinal placement for rear-wheel drive configuration
- Direct connection to the 3UZ-FE V8 engine
- Electronically controlled shift mechanisms
- Compatibility with Lexus Vehicle Stability Control (VSC)
Performance Specifications
Explore the performance metrics of the A650 transmission, including gear ratios, shift times, and torque handling capabilities. This section highlights how the transmission contributes to the Lexus LS's smooth and responsive driving experience.
Performance Specifications
Explore the performance metrics of the A650 transmission, including gear ratios, shift times, and torque handling capabilities. This section highlights how the transmission contributes to the Lexus LS's smooth and responsive driving experience.
Gear Ratios
- 1st gear: 3.538:1
- 2nd gear: 2.060:1
- 3rd gear: 1.404:1
- 4th gear: 1.000:1
- 5th gear: 0.713:1
- Reverse gear: 3.168:1
Shift Performance
- Shift times under 200 milliseconds
- Adaptive shift logic for varying driving conditions
- Smooth transitions between gears
- Manual mode for driver-controlled shifts
Maintenance and Service
This section provides guidelines for maintaining the A650 transmission, including fluid requirements, service intervals, and common troubleshooting tips. Proper maintenance ensures longevity and optimal performance.
Maintenance and Service
This section provides guidelines for maintaining the A650 transmission, including fluid requirements, service intervals, and common troubleshooting tips. Proper maintenance ensures longevity and optimal performance.
Fluid Requirements
- Use Toyota Type T-IV transmission fluid
- Fluid capacity: 9.5 liters (10 quarts)
- Regular fluid checks every 30,000 miles
- Fluid replacement recommended every 60,000 miles
Common Issues and Solutions
- Delayed shifts: Check fluid level and condition
- Transmission overheating: Inspect cooling system
- Unusual noises: Verify torque converter operation
- Error codes: Use diagnostic tools for troubleshooting
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Transmission Specifications
Overview
- Type
- 6-speed automatic
- Configuration
- Longitudinal
- Platform
- Toyota A650E
- Material
- Aluminum alloy casing
- Location
- Rear-wheel drive configuration
Dimensions
- Length
- 28.5 inches (724 mm)
- Width
- 22.8 inches (579 mm)
- Height
- 18.3 inches (465 mm)
- Weight
- 187 lbs (85 kg)
- input Shaft Diameter
- 1.2 inches (30.5 mm)
- Output Shaft Diameter
- 1.5 inches (38.1 mm)
- Fluid Capacity
- 9.8 quarts (9.3 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Viton rubber
Features
- Shifting
-
- Adaptive shift control
- Manual shift mode
- Smooth transition between gears
- Performance
-
- Lock-up torque converter
- Wide gear ratio spread
- Optimized for V8 engines
- Durability
-
- Reinforced internal components
- High-temperature resistance
- Sealed against contaminants
- Efficiency
-
- Reduced internal friction
- Optimized fluid flow
- Lightweight design
Safety Features
- Fail-Safes
-
- Overheat protection
- Low fluid pressure warning
- Mechanical
-
- Reinforced casing
- Shear-resistant gears
- Electronic
-
- Transmission control module (TCM)
- CAN bus integration
Comfort Features
- Noise Reduction
-
- Precision gear meshing
- Vibration dampening
- Smoothness
-
- Adaptive shift logic
- Torque converter lock-up
- Convenience
-
- Paddle shifters (optional)
- Sport mode
Accessories
- Upgrades
-
- Performance torque converter
- Aftermarket shift kits
- Tools
-
- Transmission jack adapter
- Fluid exchange kit
- Maintenance
-
- Filter kit
- Gasket set
- Fluid pan
Maintenance
- Service interval
- Every 60,000 miles or 60 months
- Service Items
-
- Fluid and filter replacement
- Seal inspection
- Shift solenoid check
- Torque converter inspection
- Transmission mount check
- Notes
- Use only Toyota WS ATF for optimal performance.
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Parts and labor
- Powertrain
- Miles: 100,000Years: 6Coverage: Transmission components
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Casing and external parts
- Extended
- Miles: 120,000Years: 8Coverage: Optional extended coverage
Production Details
- Manufacturer
- Aisin Seiki Co., Ltd.
- Manufacturing Process
-
- Precision CNC machining
- Heat treatment of gears
- Automated assembly
- Quality Control
- Testing: Durability testing, Shift pattern validation, Fluid pressure checksStandards: ISO 9001 certified, Toyota Production System (TPS)
- Sustainability
-
- Recyclable materials
- Energy-efficient production
- Waste reduction initiatives
- Production Metrics
- Annual Output: 150,000 unitsDefect Rate: 0.02%
Service Information for a650 transmission Service
Maintenance and service requirements specific to this component
- Inspect transmission fluid level
- Check for leaks
- Inspect shift linkage
- Test shift solenoid operation
Ensure fluid is at operating temperature during inspection.
- Replace transmission fluid and filter
- Inspect torque converter
- Check transmission mounts
- Test TCM functionality
Use only Toyota WS ATF for fluid replacement.
- Complete transmission flush
- Inspect and replace seals if necessary
- Check clutch pack wear
- Perform shift pattern calibration
Major service may require specialized tools and equipment.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the A650 transmission compatible with other Lexus models?
Is the A650 transmission compatible with other Lexus models?
The A650 transmission is specifically designed for the 2001-2006 Lexus LS 430. While it shares some design elements with other Lexus transmissions, it is not directly compatible with other models due to differences in mounting points, electronics, and torque handling. Always verify compatibility with your vehicle's VIN and consult a professional before attempting any cross-model installations.
Q2 What are the maintenance requirements for the A650 transmission?
What are the maintenance requirements for the A650 transmission?
The A650 transmission requires regular maintenance to ensure optimal performance. Lexus recommends a fluid and filter change every 60,000 to 100,000 miles, depending on driving conditions. Additionally, inspect for leaks, ensure proper fluid levels, and check for unusual noises or shifting behavior. Regular servicing by a certified technician is advised to maintain longevity and performance.
Q3 How do I replace the A650 transmission in a 2001-2006 Lexus LS?
How do I replace the A650 transmission in a 2001-2006 Lexus LS?
Replacing the A650 transmission involves several steps: 1) Disconnect the battery and drain the transmission fluid. 2) Remove the driveshaft, exhaust components, and transmission mounts. 3) Disconnect electrical connectors and shift linkage. 4) Support the engine and remove the transmission. Installation is the reverse process. Ensure proper alignment and torque specifications. Professional installation is recommended due to the complexity and precision required.
Q4 What should I do if my A650 transmission is slipping or not shifting properly?
What should I do if my A650 transmission is slipping or not shifting properly?
If your A650 transmission is slipping or not shifting properly, start by checking the transmission fluid level and condition. Low or contaminated fluid can cause these issues. Inspect for leaks, damaged wiring, or faulty sensors. If the problem persists, perform a diagnostic scan to identify error codes. Common solutions include fluid replacement, sensor repairs, or, in severe cases, a transmission rebuild or replacement.
Q5 How can I optimize the performance of my A650 transmission?
How can I optimize the performance of my A650 transmission?
To optimize the A650 transmission's performance, use only Lexus-approved transmission fluid and ensure regular maintenance. Avoid aggressive driving and excessive towing to reduce wear. Consider installing an aftermarket transmission cooler for improved heat dissipation. Regularly update the vehicle's software to ensure the transmission control module operates efficiently. These steps can enhance longevity and smooth operation.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Lexus LS 430 A650 Transmission Service Manual
Coming SoonDetailed service manual covering the A650 transmission, including disassembly, repair, and reassembly instructions.
A650 Transmission Technical Service Bulletin
Coming SoonTechnical bulletin addressing common issues, updates, and fixes for the A650 transmission in the Lexus LS 430.
Lexus LS 430 Transmission Parts Catalog
Coming SoonComprehensive catalog of OEM and aftermarket parts for the A650 transmission, including part numbers and compatibility details.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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