Standard Ignition ALS1278 ABS Wheel Speed Sensor - Rear Left

Reliable ABS Wheel Speed Sensor for Toyota 4Runner

The Standard Ignition ALS1278 ABS Wheel Speed Sensor is designed specifically for Toyota 4Runner models, ensuring accurate wheel speed data for your vehicle's anti-lock braking system. This sensor helps maintain optimal braking performance and vehicle stability under various driving conditions.

• Compatible with Toyota 4Runner models
• Part number ALS1278 for precise identification
• Monitors wheel speed for ABS functionality
• Durable construction for long-lasting performance
• Direct replacement sensor for easy installation

Product Details and Functionality

The Standard Ignition ALS1278 ABS Wheel Speed Sensor plays a critical role in the Toyota 4Runner's braking system by detecting the rotational speed of the wheels. This information is sent to the vehicle's ABS control module, which adjusts braking pressure to prevent wheel lockup during sudden stops or slippery conditions. The sensor is engineered to meet OEM specifications, providing reliable and consistent data to maintain vehicle safety and control.

Common Issues Addressed by the ALS1278 Sensor

• Intermittent ABS warning light activation
• Erratic or non-functional anti-lock braking system
• Inaccurate wheel speed readings causing traction control problems
• Unstable braking performance on slippery surfaces
• Fault codes related to wheel speed sensor failure

Installation Notes and Tips

• Ensure the vehicle is securely lifted and supported before sensor replacement
• Disconnect the battery to prevent electrical shorts during installation
• Clean the sensor mounting area to remove debris and corrosion
• Use the correct torque specifications when securing the sensor
• Verify sensor connector is fully seated and free of damage

Quality Assurance and Warranty Information

Standard Ignition manufactures the ALS1278 ABS Wheel Speed Sensor to meet strict quality standards, ensuring compatibility and durability for Toyota 4Runner vehicles. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship to provide confidence in the sensor's performance.