Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Brake System Malfunction (C1A50)

DESCRIPTION

The forward recognition camera receives electronically controlled brake system control signals from the skid control ECU (brake booster with master cylinder assembly). If the forward recognition camera receives a malfunction signal from the electronically controlled brake system, DTC C1A50 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A50

Brake System Malfunction

2 seconds after the power switch is turned on (IG), a signal from the skid control ECU (brake booster with master cylinder assembly) indicating an electronically controlled brake system malfunction is detected by the forward recognition camera for 5 seconds or more.

Electronically controlled brake system

CAUTION / NOTICE / HINT

NOTICE:

The lane departure alert system (w/ steering control) 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 lane departure alert system (w/ steering control), perform troubleshooting for the electronically controlled brake system.

Click here

NEXT

END

    G Sensor (C1A48)

    Power Steering Control System (C1A70)

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