Electronic Limited Slip Differential Reduced Torque warning in Ford

The “Electronic Limited Slip Differential Reduced Torque” warning in a Ford vehicle typically indicates an issue with the electronic limited slip differential system. This system is designed to improve traction and stability by distributing torque to the wheels with the most traction.

How Electronic Limited Slip Differential works

An Electronic Limited Slip Differential (eLSD) is a system that helps to improve the vehicle’s traction and stability by varying the amount of torque distributed to each wheel based on the driving conditions. The eLSD system uses sensors, electronic control modules, and hydraulic actuators to manage the distribution of torque to the wheels.


Here’s how the eLSD system works:

  1. The system uses sensors to monitor the speed of each wheel, the steering angle, and the vehicle’s acceleration.
  2. The data collected by the sensors is analyzed by the electronic control module, which determines how much torque needs to be distributed to each wheel to optimize traction and stability.
  3. The hydraulic actuators then apply pressure to the clutches within the differential to distribute the torque to the wheels accordingly.
  4. When the vehicle is turning, the eLSD system applies more torque to the outside wheel, which helps to prevent understeer and improve handling.
  5. When the vehicle is accelerating, the eLSD system distributes more torque to the wheel with the most traction, which helps to prevent wheel spin and improve acceleration.

Overall, the eLSD system helps to improve the vehicle’s traction and stability in a variety of driving conditions, including wet or slippery roads, uneven terrain, and sharp turns.

eLSD warning message causes

When Electronic Limited Slip Differential Reduced Torque warning appears, it means that the system has detected a problem and has reduced torque. There could be several reasons for this warning, such as a malfunctioning sensor, a damaged wiring harness, or a failed component in the electronic limited slip differential system.

The warning message may also be displayed when the system detects an issue with the sizes of the tires. For instance, if a smaller spare tire is being used instead of the standard-sized tire, the warning message may be triggered. If the tires are of the same size and pressure, the issue could be related to a malfunctioning wheel/ABS sensor or a poor connection in the wiring. The sensor is responsible for matching the rotation rates of the tires and if it detects a difference, it will trigger the warning message.

Connect an OBDII scanner

Connect and OBDII scanner to your vehicle and read the fault codes stored in the vehicle’s computer system. The fault codes can provide valuable information about the specific issue that triggered the Electronic Limited Slip Differential (eLSD) warning message.

Symptoms of bad Electronic Limited Slip Differential

When an Electronic Limited Slip Differential (eLSD) fails, it can cause a number of issues with the vehicle’s traction and stability control systems.


Here are a few potential problems that can occur when an eLSD fails:

Warning Light

When the eLSD fails, it may cause a warning light to appear on the dashboard. The warning light may indicate that the system is disabled or not functioning properly.

Traction Control Issues

The eLSD is designed to work in tandem with the vehicle’s traction control system. When the eLSD fails, it can cause the traction control system to malfunction, which can lead to reduced traction, wheel spin, and unstable handling.

Poor Acceleration

The eLSD helps to distribute torque evenly between the wheels to improve acceleration. When the eLSD fails, it can cause uneven torque distribution, which can result in poor acceleration and reduced performance.

Unusual Noises

A failing eLSD may produce unusual noises, such as grinding, clunking, or whining, especially when turning or accelerating.

If you suspect that your eLSD is failing, it’s important to have your vehicle inspected by a qualified mechanic or a certified Ford service center as soon as possible. Ignoring the symptoms of a failing eLSD can lead to more serious and costly repairs down the line, and it can also compromise your safety on the road.

Ford Expedition is equipped with Electronic Limited Slip Differential System.

What are the benefits of eLSD?

Yes, an Electronic Limited Slip Differential (eLSD) is definitely worth it for many drivers, especially those who frequently drive in challenging conditions or who want to improve their vehicle’s performance. Here are some reasons why an eLSD may be worth the investment:

Improved Traction

The eLSD is designed to improve traction in a variety of driving conditions, including wet or slippery roads, uneven terrain, and sharp turns. This can help to improve vehicle stability and reduce the risk of accidents.


Better Handling

The eLSD can help to distribute torque evenly between the wheels, which can improve handling and cornering ability. This can make the vehicle feel more responsive and agile on the road.

Enhanced Performance

The eLSD can also help to improve the vehicle’s acceleration, especially in low-grip conditions. This can be especially beneficial for high-performance vehicles or for drivers who want to get the most out of their vehicle’s engine.

Author: Nabeel K
Email: nabeel@wheelsjoint.com



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