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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 136 (Electronically Controlled Brake System (HV) - Diagnostic Codes (04 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C052C-14: ABS Pump Motor Control Circuit Short to Ground or Open; DTC C052C-16: ABS Pump Motor Control Circuit Voltage Below Threshold; DTC C052C-17: ABS Pump Motor Control Circuit Voltage Above Threshold; DTC C052C-29: ABS Pump Motor Control Signal Invalid; DTC C052C-49: ABS Pump Motor Control Internal Electronic Failure; DTC C052F-14: ABS Pump Motor Supply Voltage Circuit Short to Ground or Open [11/2023 - ] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different variant/trim than selected.
C052B (CASE 16)

Reverse battery protection MOS gate voltage monitor On
C052B (CASE 17)

Motor relay gate voltage monitor On
C052B (CASE 18 AND 23)

One of the following conditions is met -
Motor relay gate voltage monitor On
Freewheeling MOS gate voltage monitor On
Reverse battery protection MOS gate voltage monitor On
C052B (CASE 19)

Freewheeling MOS gate voltage monitor Off
C052B (CASE 20)

Motor relay gate voltage monitor Off
C052B (CASE 21)

High side voltage of motor 3 V or less, or 6.5 V or more
C052B (CASE 22)

Reverse battery protection MOS gate voltage monitor Off
C052B (CASE 24) AND C052D (CASE 7)

Either of the following conditions is met -
High side voltage of motor 3 V or less, or 6.5 V or more
Voltage difference between high and low side of motor (MTDIF voltage) -1 V or less, or 6.5 V or more
C052B (CASE 25)

Motor circuit current 264 A or more
C052B (CASE 26)

Freewheeling MOS overcurrent signal On
C052C (CASE 3)

Voltage difference between high and low side of motor (MTDIF voltage) Less than 1.5 V
C052C (CASE 4)

Either of the following conditions is met -
High pulse width of PWM Less than 0.000021 seconds, or higher than 0.000029 seconds
Low pulse width of PWM Less than 0.000021 seconds, or higher than 0.000029 seconds
C052D (CASE 5)

Either of the following conditions is met -
High side voltage of motor (MT voltage) 6.5 V or more
Voltage difference between high and low side of motor (MTDIF voltage) 6.5 V or more
C052D (CASE 6)

High side voltage of motor (MT voltage) 3 V or less
C052D (CASE 8)

High side voltage of motor 3 V or less, or 6.5 V or more
C052E (CASE 10)

High side voltage of motor (MT voltage) 3 V or more, and 6.5 V or less
C052E (CASE 11 AND 12)

Either of the following conditions is met -
High side voltage of motor Higher than 3 V
Voltage difference between high and low side of motor (MTDIF voltage) -1 V or less, or 6.5 V or more
C052E (CASE 13)

Either of the following conditions is met -
High side voltage of motor Less than 3 V
Voltage difference between high and low side of motor (MTDIF voltage) -1 V or less, or 6.5 V or more
C052E (CASE 14)

High side voltage of motor 3 V or less, or 6.5 V or more
C052E (CASE 15)

Either of the following conditions is met -
Difference BM voltage and high side voltage of motor (MT voltage) Higher than 1.5 V
Voltage difference between high and low side of motor (MTDIF voltage) Less than 3 V
C052E (CASE 16)

Either of the following conditions is met -
High side voltage of motor Higher than 6 V, or less than difference +BM voltage and 1.5 V
Voltage difference between high and low side of motor (MTDIF voltage) -1 V or less, or 6.5 V or more
C052E (CASE 17)

High side voltage of motor Less than 3 V
C055B

+BM voltage Less than 6 V
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