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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Except HV) - Diagnostic Codes (1 Of 3) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model) >> DTC C0506-23: Right Front Wheel Speed Sensor Signal Stuck Low [12/2019 - ] >> Description

DTC C0506-23: Right Front Wheel Speed Sensor Signal Stuck Low [12/2019 - ]: Description

Refer to DTC C0506-12.

Refer to DTC C0506-12: Right Front Wheel Speed Sensor Circuit Short to Battery [12/2019 - ] 

DTC No. Detection Item DTC Detection Condition Trouble Area
C0506-23 Right Front Wheel Speed Sensor Signal Stuck Low Any of the following is detected:
  • When the +BS terminal voltage is 17.4 V or less at a vehicle speed of 10 km/h (6 mph) or more, output voltage from one of the speed sensors is less than that from the other sensors for 15 seconds or more.*2
  • When the +BS terminal voltage is 17.4 V or less at a vehicle speed of 10 km/h (6 mph) or more, output voltage from one of the speed sensors is less than that from the other sensors for 30 seconds or more.*1
  • When the +BS terminal voltage is 17.4 V or less at a vehicle speed of 10 km/h (6 mph) or more, output from one of the speed sensors is 0 km/h (0 mph) for 1 second or more.
  • When the +BS terminal voltage is 17.4 V or less at a vehicle speed of 10 km/h (6 mph) or more, outputs from both front speed sensors are 0 km/h (0 mph) for 15 seconds or more.*2
  • When the +BS terminal voltage is 17.4 V or less at a vehicle speed of 10 km/h (6 mph) or more, outputs from both front speed sensors are 0 km/h (0 mph) for 30 seconds or more.*1
  • Speed sensor installation
  • Wire harness and connector
  • Front speed sensor RH
  • Front speed sensor rotor RH (front axle hub sub-assembly RH)
  1. *1: for AWD
  2. *2: for 2WD