DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 37 (Electronically Controlled Brake System (HV) - Diagnostic Codes (08 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C13B9-51: SM Valve Learning Not Programmed; DTC C13B9-54: SM Valve Learning Missing Calibration [12/2019 - ] >> Description

DTC C13B9-51: SM Valve Learning Not Programmed; DTC C13B9-54: SM Valve Learning Missing Calibration [12/2019 - ]: Description

WARNING: This page is about a different variant/trim than selected.

The No. 2 skid control ECU (brake actuator assembly) stores the individual characteristics of each linear solenoid built into the brake actuator assembly. Based on the stored information, the No. 2 skid control ECU (brake actuator assembly) calibrates the individual differences and controls systems.

The No. 2 skid control ECU (brake actuator assembly) receives the shift position P signal from the hybrid vehicle control ECU through the CAN communication system.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
C13B9-51 SM Valve Learning Not Programmed The SM solenoid valve offset learning value is not stored.
  • If this DTC is not output after performing SM solenoid valve offset learning, there is no malfunction.
  • Brake fluid leaks
  • No. 2 skid control ECU (brake actuator assembly)
Does not come on Output ECU: No. 2 skid control ECU (brake actuator assembly)
HINT: 
During Dealer Mode, related DTCs are cleared.
C13B9-54 SM Valve Learning Missing Calibration SM solenoid valve offset learning cannot be obtained
  • If this DTC is not output after performing SM solenoid valve offset learning, there is no malfunction.
  • Brake fluid leaks
  • No. 2 skid control ECU (brake actuator assembly)
Does not come on Output ECU: No. 2 skid control ECU (brake actuator assembly)