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Home >> Lexus >> 2020 >> UX 200 Base >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Diagnostic Codes (2 Of 2) & Circuit Tests) (Except Hybrid) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model) >> DTC C052C-49: ABS Pump Motor Control Internal Electronic Failure [10/2018 - 07/2022] >> Description

DTC C052C-49: ABS Pump Motor Control Internal Electronic Failure [10/2018 - 07/2022]: Description

The ABS motor relay and pump motor are built into the brake actuator assembly.

If the skid control ECU (brake actuator assembly) detects a malfunction in the drive circuit of the pump motor, this DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C052C-49 ABS Pump Motor Control Internal Electronic Failure
  • The skid control ECU (brake actuator assembly) detects a malfunction in the pump motor circuit.
  • When the system has started, a short to +B is detected during the ABS motor drive circuit self test.
Skid control ECU (brake actuator assembly)
DTC DETECTION CONDITIONS: C052C-49

  Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition The system has started. - ◦
Malfunction Status The skid control ECU (brake actuator assembly) detects a malfunction in the pump motor circuit. ◦ -
A short to +B is detected during the ABS motor drive circuit self test. - ◦
Detection Time - -
Number of Trips 1 trip 1 trip

HINT: 

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