Toyota Corolla Cross: ABS Pump Motor Control Internal Electronic Failure (C052C49)

Toyota Corolla Cross (2022-2024) Service Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System (for Gasoline Model) / ABS Pump Motor Control Internal Electronic Failure (C052C49)

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
C052C49	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)

PROCEDURE

1.	REPLACE BRAKE ACTUATOR ASSEMBLY

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Parts Location

PARTS LOCATION ILLUSTRATION *A w/ Power Back Door System *B w/o Power Back Door System *1 FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH *2 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH *3 REAR DOOR LOCK WITH MOTOR ASSEMBLY RH *4 REAR DOOR COURTESY LIGH

Outer Mirror Indicator (Module "B" Side) Circuit Short to Battery (C1AB412)

DESCRIPTION This DTC is stored when the blind spot monitor sensor LH (B) detects a short to +B in the outer rear view mirror indicator LH. DTC No. Detection Item DTC Detection Condition Trouble Area C1AB412 Outer Mirror Indi

Toyota Corolla Cross: ABS Pump Motor Control Internal Electronic Failure (C052C49)

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Parts Location

Outer Mirror Indicator (Module "B" Side) Circuit Short to Battery (C1AB412)