Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

• Use these procedures to troubleshoot the lane departure alert system (w/ steering control).
• *: Use the Techstream.

PROCEDURE

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(a) Measure the auxiliary battery voltage with the power switch off.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.

NEXT

(a) Using the Techstream, check if the CAN communication system is functioning normally.

HINT:

Refer to CAN Bus Check in CAN Communication System.

Click here

OK:

CAN communication system is functioning normally.

NG

GO TO CAN COMMUNICATION SYSTEM

OK

HINT:

Refer to DTC Check / Clear.

Click here

(a) Check for DTCs and note any codes that are output.

(b) Clear the DTCs.

(c) Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs.

B

GO TO DTC CHART

A

HINT:

Refer to Problem Symptoms Table.

Click here

B

GO TO STEP 8

A

(a) Terminals of ECU

Click here

(b) Data List / Active Test

Click here

NEXT

NOTICE:

When the forward recognition camera is replaced with a new one, forward recognition camera adjustment must be performed.

Click here

NEXT

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END