Speedometer Malfunction [12/2017 - 10/2023]: Description

The combination meter assembly receives vehicle speed signals from the skid control ECU via CAN communication. The speed sensor detects the wheel speed and sends the appropriate signals to the brake actuator (skid control ECU). The skid control ECU supplies power to the vehicle speed sensor. The skid control ECU detects vehicle speed signals based on pulses of the voltage.

HINT: 

• Factors that affect the indicated vehicle speed include the tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using the Techstream. For details about testing and the margin of error, see the reference chart.

  Refer to OPERATION CHECK [12/2017 - 10/2020] , or refer to OPERATION CHECK [10/2020 - 10/2023]

• If the vehicle speed sensor circuit has a malfunction, the brake actuator (skid control ECU) stores DTCs. Troubleshoot the electronically controlled brake system.

  w/ Vacuum Brake Booster: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 09/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 10/2023]

  w/o Vacuum Brake Booster: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 10/2023]