Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001ARMG
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2019 - 2022 MY Avalon [04/2018 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN communication system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

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2.

CUSTOMER PROBLEM ANALYSIS

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3.

INSPECT BATTERY VOLTAGE

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

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4.

CONNECT TECHSTREAM TO DLC3*

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5.

CHECK AND CLEAR DTCS AND FREEZE FRAME DATA*

(a) Refer to DTC Check / Clear.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DTC CHECK / CLEAR

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6.

VISUAL INSPECTION

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7.

SELECT CHECK MODE DIAGNOSIS*

(a) Refer to Check Mode Procedure.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: CHECK MODE PROCEDURE

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8.

PROBLEM SYMPTOM CONFIRMATION

(a) Refer to Road Test.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: ROAD TEST

Result

Proceed to

Symptom does not occur

A

Symptom occurs

B

B

GO TO STEP 10

A

9.

SYMPTOM SIMULATION

(a) Refer to Symptom Simulation.

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

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10.

DTC CHECK*

(a) Refer to DTC Check / Clear.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DTC CHECK / CLEAR

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO STEP 20

A

11.

BASIC INSPECTION

(a) Refer to Park/Neutral Position Switch.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: ADJUSTMENT

(b) Refer to Transmission Control Cable.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): TRANSMISSION CONTROL CABLE: ADJUSTMENT

NG

GO TO STEP 18

OK

12.

MECHANICAL SYSTEM TESTS

(a) Refer to Mechanical System Tests.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: MECHANICAL SYSTEM TESTS

NG

GO TO STEP 17

OK

13.

HYDRAULIC TEST

(a) Refer to Hydraulic Test.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: HYDRAULIC TEST

NG

GO TO STEP 17

OK

14.

MANUAL SHIFTING TEST

(a) Refer to Manual Shifting Test.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: MANUAL SHIFTING TEST

NG

GO TO STEP 16

OK

15.

PROBLEM SYMPTOMS TABLE CHAPTER 1

(a) Refer to Problem Symptoms Table.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: PROBLEM SYMPTOMS TABLE

NG

GO TO STEP 21

OK

16.

PROBLEM SYMPTOMS TABLE CHAPTER 2

(a) Refer to Problem Symptoms Table.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: PROBLEM SYMPTOMS TABLE

NEXT

17.

COMPONENT INSPECTION

NEXT

18.

REPAIR OR REPLACE

NEXT

19.

CONFIRMATION TEST

NEXT

END

20.

DTC CHART

(a) Refer to Diagnostic Trouble Code Chart.

Click here 2019 MY Avalon [04/2018 - 08/2019]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2020 MY Avalon [08/2019 - 08/2020]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2021 - 2022 MY Avalon [08/2020 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

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21.

CIRCUIT INSPECTION

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22.

IDENTIFICATION INFORMATION

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GO TO STEP 18