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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 127 (Electronically Controlled Brake System (HV) - Diagnostic Codes (11 Of 11), Symptom Tests & Circuit Tests) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> Brake Pressure Sensor / Brake Pedal Position Sensor Signal Compare Failure (X21D2) [12/2019 - ] >> Description

Brake Pressure Sensor / Brake Pedal Position Sensor Signal Compare Failure (X21D2) [12/2019 - ]: Description

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Code Tester Display Measurement Item Trouble Area Output ECU
X21D2 Brake Pressure Sensor / Brake Pedal Position Sensor Signal Compare Failure History of mismatch between brake pedal stroke sensor assembly and reaction force pressure sensor
  • Brake booster with master cylinder assembly
  • Brake pedal stroke sensor assembly
No. 1 skid control ECU (brake booster with master cylinder assembly)