Standard Ignition ALS1771 ABS Wheel Speed Sensor - Rear

Reliable ABS Wheel Speed Sensor for Chevrolet and GMC Vehicles

The Standard Ignition ALS1771 ABS Wheel Speed Sensor is designed to provide accurate wheel speed data for your Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500. Engineered for spindle mounting, this sensor ensures consistent performance and compatibility with your vehicle's braking system.

• Connector Gender: Male
• Connector Quantity: 1
• Connector Shape: Oval
• Mounting Location: Spindle
• Number of Bolt Holes: 1
• Terminal Gender: Male
• Terminal Quantity: 2
• Terminal Type: Blade

Detailed Product Description

The ALS1771 ABS Wheel Speed Sensor from Standard Ignition is specifically designed for spindle mounting on select Chevrolet and GMC vans, including the Express 2500, Express 3500, Savana 2500, and Savana 3500 models. Featuring a single oval-shaped male connector and a single bolt hole for secure installation, this sensor integrates seamlessly with your vehicle’s ABS system. The sensor terminals are male blade types, with two terminals ensuring reliable electrical connections. This precise configuration supports accurate wheel speed monitoring, which is critical for the proper function of anti-lock braking systems.

Common Applications and Problem Resolution

• Restores ABS warning light functionality by providing accurate wheel speed data
• Eliminates erratic ABS behavior caused by faulty or damaged sensors
• Prevents unintended ABS activation during braking
• Improves vehicle stability and braking response on Chevrolet Express and GMC Savana vans
• Addresses sensor-related diagnostic trouble codes (DTCs) in ABS systems

Installation Notes and Tips

• Ensure the spindle mounting location is clean and free of debris before installation
• Use the single bolt hole to securely fasten the sensor to prevent movement
• Verify the oval male connector is properly seated to avoid electrical connection issues
• Check wiring and terminal blade connections for corrosion or damage prior to installation
• Consult vehicle service manual for torque specifications and ABS system calibration procedures

Quality Assurance and Warranty Information

Standard Ignition manufactures the ALS1771 ABS Wheel Speed Sensor to meet or exceed OEM specifications for fit, form, and function. Each sensor undergoes rigorous testing to ensure durability and reliable performance under normal operating conditions. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in materials and workmanship for a specified period. Refer to the warranty documentation for detailed terms and conditions.