Last Modified: 11-20-2023 |
6.11:8.1.0 |
Doc ID: RM1000000014W7Q |
Model Year Start: 2018 |
Model: Camry HV |
Prod Date Range: [07/2017 - 09/2018] |
Title: CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM (w/ Steering Control): C1AA3; Vehicle Speed Sensor Circuit; 2018 MY Camry HV [07/2017 - 09/2018] |
DTC
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C1AA3
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Vehicle Speed Sensor Circuit
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DESCRIPTION
The forward recognition camera receives vehicle speed signals from the skid control ECU (brake booster with master cylinder assembly). If the skid control ECU (brake booster with master cylinder assembly) receives a vehicle speed sensor malfunction signal, it informs the forward recognition camera via CAN communication, and DTC C1AA3 is stored.
DTC No.
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Detection Item
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DTC Detection Condition
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Trouble Area
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C1AA3
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Vehicle Speed Sensor Circuit
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After the power switch is turned on (IG) for 3 seconds or more, a signal from the skid control ECU (brake booster with master cylinder assembly) indicating a malfunction in a vehicle speed sensor is detected by the forward recognition camera for 5 seconds or more.
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Electronically controlled brake system
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Forward recognition camera
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CAUTION / NOTICE / HINT
NOTICE:
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When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
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If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.
Click here
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The lane departure alert 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.
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CHECK FOR DTCs (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)
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HINT:
If DTC C1AA3 is stored, the electronically controlled brake system may be malfunctioning. Check for DTCs related to the electronically controlled brake system first.
(a) Check for DTCs.
Chassis > ABS/VSC/TRAC > Trouble Codes
Result
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Proceed to
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Electronically controlled brake system DTCs are not output
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A
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Electronically controlled brake system DTCs are output
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B
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A
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|
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2.
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CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)
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(a) Clear the DTCs.
Chassis > LKA/LDA > Clear DTCs
(b) Perform the following procedure.
HINT:
If the following procedure is not performed, the previously output DTC cannot be detected.
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Turn the power switch on (IG) and wait 8 seconds or more.
(c) Check for DTCs.
Chassis > LKA/LDA > Trouble Codes
Result
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Proceed to
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DTC C1AA3 is not output
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A
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DTC C1AA3 is output
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B
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