CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM (w/ Steering Control) (for HV Model): C1AA6; Yaw Rate Sensor Zero Point Malfunction; 2019 - 2021 MY Avalon HV [04/2018

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001BE43
Model Year Start: 2019	Model: Avalon HV	Prod Date Range: [04/2018 - 08/2021]
Title: CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM (w/ Steering Control) (for HV Model): C1AA6; Yaw Rate Sensor Zero Point Malfunction; 2019 - 2021 MY Avalon HV [04/2018 - 08/2021]

DTC

C1AA6

Yaw Rate Sensor Zero Point Malfunction

DESCRIPTION

The skid control ECU (brake booster with master cylinder assembly) receives vehicle stability signals from the yaw rate sensor (airbag ECU assembly). If the skid control ECU (brake booster with master cylinder assembly) detects a yaw rate sensor zero point malfunction signal, it informs the forward recognition camera via CAN communication, and DTC C1AA6 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1AA6	Yaw Rate Sensor Zero Point Malfunction	When all of the following conditions are met: 2 seconds after the power switch is turned on (IG) The vehicle speed is 1 km/h or 1 mph or more. A signal from the skid control ECU (brake booster with master cylinder assembly) indicating a malfunction in the yaw rate sensor zero point 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 C1AA6 is output by the lane departure alert system (w/ steering control), perform troubleshooting for the electronically controlled brake system.

Click here

END