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Home >> Toyota >> 2021 >> RAV4 LE, AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/O Vacuum Brake Booster) - Diagnostic Codes (1 Of 8) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster) >> DTC C0512-23: Right Rear Wheel Speed Sensor Signal Stuck Low [12/2021 - ] >> Description

DTC C0512-23: Right Rear Wheel Speed Sensor Signal Stuck Low [12/2021 - ]: Description

Refer to DTC C0512-12.

Refer to DTC C0512-12: Right Rear Wheel Speed Sensor Circuit Short to Battery [12/2021 - 10/2022] , or refer to DTC C0512-12: Right Rear Wheel Speed Sensor Circuit Short to Battery [10/2022 - ] 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
C0512-23 Right Rear 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 30 seconds 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, 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 rear speed sensors are 0 km/h (0 mph) for 30 seconds or more.
  • Rear skid control sensor RH
  • Rear skid control sensor installation
  • Skid control sensor wire RH (No. 1 parking brake wire assembly)
  • Wire harness and connector
  • Rear speed sensor rotor RH (rear axle hub and bearing assembly RH)
Comes on
  • SAE Code: C0513 (Case 1 to 3)
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)
C0512-23 DTC DETECTION CONDITIONS

  Vehicle Condition
Pattern 1 Pattern 2 Pattern 3
Diagnosis Condition When the +BS terminal voltage is 17.4 V or less ◦ ◦ ◦
Malfunction Status 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 ◦ - -
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) - ◦ -
At a vehicle speed of 10 km/h (6 mph) or more, outputs from both speed sensors are 0 km/h (0 mph) - - ◦
Detection Time 30 seconds or more. 1 second or more. 30 seconds or more.
Number of Trips 1 trip 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.