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

CAUTION / NOTICE / HINT

HINT:

*: Use the Techstream.

PROCEDURE

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(a) Interview the customer and confirm the problem.

Click here

NEXT

(a) Check and record DTCs and Freeze Frame Data.

for DTC Check / Clear: Click here

for Freeze Frame Data: Click here

(b) Clear the DTCs and Freeze Frame Data.

for DTC Check / Clear: Click here

for Freeze Frame Data: Click here

(c) Reconfirm the DTCs.

(1) Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.

for DTC Check / Clear: Click here

for Freeze Frame Data: Click here

HINT:

• When CAN communication system DTCs are output, repair the CAN communication system first.

  Click here

• If DTC U0100, U0123 and/or U0126 are among the CAN communication DTCs that are output, first use the Data List to check for a momentary open circuit.

  Click here

• If the Techstream cannot communicate with the skid control ECU (brake actuator assembly), inspect the CAN communication system.

  Click here

• If there is no response from the skid control ECU (brake actuator assembly), inspect the +BS circuit of the skid control ECU (brake actuator assembly).

  Click here

B

GO TO STEP 5

C

GO TO STEP 6

A

(a) Proceed to Diagnostic Trouble Code Chart.

Click here

NEXT

GO TO STEP 7

(a) Proceed to How to Proceed with Troubleshooting.

Click here

NEXT

(a) Proceed to Problem Symptoms Table.

Click here

NEXT

NEXT

NEXT

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(a) Clear the DTCs.

Click here

(b) Check if the same DTCs are output.

Click here

B

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

A

NEXT

END