Toyota Avalon Service & Repair Manual: Brake System Malfunction (C1A50)

DESCRIPTION

When the pre-collision system is operating, the driving support ECU assembly sends brake control signals to the skid control ECU (brake actuator assembly).

If the driving support ECU assembly receives an electronically controlled brake system malfunction signal from the skid control ECU (brake actuator assembly) via CAN communication, DTC C1A50 will be stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A50

Brake System Malfunction

While the engine switch is on (IG), the driving support ECU assembly receives an electronically controlled brake system malfunction signal from the skid control ECU (brake actuator assembly) for 0.3 seconds or more.

Electronically controlled brake system

CAUTION / NOTICE / HINT

NOTICE:

The pre-collision system uses the CAN communication system. First, confirm that there are no malfunctions in the CAN communication system. Refer to How to Proceed with Troubleshooting.

Click here

PROCEDURE

1.

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

HINT:

If DTC C1A50 is output by the pre-collision system, perform troubleshooting for the electronically controlled brake system.

Click here

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END

    Steering Angle Sensor (C1A47)

    Other System Malfunction (C1A63)

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