Toyota Corolla Cross: Yaw Rate Sensor Circuit Voltage Out of Range (C00631C)

Toyota Corolla Cross (2022-2024) Service Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System (for Gasoline Model) / Yaw Rate Sensor Circuit Voltage Out of Range (C00631C)

DESCRIPTION

The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition.

The skid control ECU (brake actuator assembly) calibrates the sensitivity of the yaw rate sensor (airbag ECU assembly) based on signals from the steering sensor and speed sensors.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C00631C	Yaw Rate Sensor Circuit Voltage Out of Range	The skid control ECU (brake actuator assembly) detects an abnormal yaw rate sensor (airbag ECU assembly) sensitivity during calculation.	Yaw rate sensor (airbag ECU assembly)

PROCEDURE

1.	REPLACE AIRBAG ECU ASSEMBLY

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END

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VC Output Circuit

DESCRIPTION The ECM constantly generates a 5 V power source voltage from the auxiliary battery voltage supplied to the +B, +B2 (BATT) terminals to operate the microprocessor. The ECM also provides this power to the sensors through the VC output circuit. When the VC circuit has a short circuit, th

Removal

REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL) Procedure Part Name Code 1 REAR WHEEL - - - - 2 LOOSEN REAR SHOCK ABSORBER ASSEMBLY

Toyota Corolla Cross: Yaw Rate Sensor Circuit Voltage Out of Range (C00631C)

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VC Output Circuit

Removal