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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 34 (Electronically Controlled Brake System (HV) - Diagnostic Codes (05 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C0540-17: Brake Pressure Sensor "A" Circuit Voltage Above Threshold [12/2019 - ] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different variant/trim than selected.
Monitor runs whenever the following DTCs are not stored C0540 (Case 1): Pressure sensor verify communication
C0540 (Case 2 to 4): Pressure sensor range check
C056B: Pressure sensor intermittent/erratic
C1103 (Case 1): Brake pedal position sensor voltage circuit/open
C1103 (Case 2): Brake pedal position sensor invalid data
C122E: Pressure sensor input out of range low
C122F: Pressure sensor input out of range high
P057A: Brake pedal position sensor invalid data
P05DB: Brake pedal position sensor invalid data
P05DD: Brake pedal position sensor open circuit
P05DE: Brake pedal position sensor circuit high
P05DF: Brake pedal position sensor intermittent/erratic
P05E0: Brake pedal position sensor "A"/"B" correlation
All of the following conditions are met A and B
A. Pressure sensor fail (C0540, C122F, C056B) Not detected
B. Either of the following conditions is met a or b
a. Both of the following conditions are met -
Up / downstream communication Valid
Zero point error permission On
b. All of the following conditions are met -
Up / downstream communication Valid
Brake position sensor circuit effective invalidity Valid
Brake actuator operation Off