• ABS warning light on
• Traction control light on
• Inoperative ABS or traction control
• Faulty right rear wheel speed sensor
• Damaged or corroded wiring/connectors
• Faulty ABS module
CAN: Controller Area Network, a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other.
ABS: Anti-lock Braking System, a safety system that prevents the wheels from locking up during braking.
• P1776
• P1777
CAN Wheel Speed Rear Wheel Right No Signal
The car's computer isn't getting any information from the sensor that tells it how fast the right rear wheel is spinning.
The P1775 code indicates that the Controller Area Network (CAN) bus is not receiving a signal from the right rear wheel speed sensor.
This code is set when the CAN bus communication between the wheel speed sensor and the vehicle's control module is interrupted or absent. The wheel speed sensor is responsible for providing data about the speed of each wheel to the vehicle's electronic control unit (ECU), which is crucial for systems like ABS and traction control.
• Inspect the right rear wheel speed sensor and wiring for damage.
• Check the connections and continuity of the wiring to the sensor.
• Use a diagnostic scanner to check for other related codes.
• Replace the faulty wheel speed sensor.
• Repair or replace damaged wiring or connectors.
• Replace the ABS module if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$100 - $300
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly inspect wheel speed sensors and wiring.
• Avoid driving through deep water which could damage sensors.
• Keep the underside of the vehicle clean to prevent corrosion.
Sensor Issue
• Drive cautiously if ABS is inoperative.
• Have the vehicle inspected by a professional mechanic.
Check with the vehicle manufacturer for specific warranty coverage on ABS components.
This code has been associated with issues in vehicles with electronic stability control systems.
Moderate – While the vehicle is still drivable, the ABS and traction control systems may not function properly.
Driving without a functional ABS system can increase stopping distances and reduce control in emergency braking situations.
• Vehicle stationary
• Engine running
The right rear wheel speed sensor is located near the hub of the right rear wheel.
Q: Can I drive with a P1775 code?
A: While you can drive with this code, it's not recommended as the ABS and traction control systems may not function properly.
Q: How do I reset the P1775 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is resolved, the code should not return.
