Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000WP3S
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 08/2016]
Title: U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2016 MY Sienna [12/2015 - 08/2016]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN and multiplex communication system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
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2.

CUSTOMER PROBLEM ANALYSIS

(a) Refer to the How to Troubleshoot ECU Controlled Systems in Introduction section.

Click here 2016 MY Sienna [12/2015 - 08/2016]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

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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 2016 MY Sienna [12/2015 - 08/2016]; U660F (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 2016 MY Sienna [12/2015 - 08/2016]; U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: CHECK MODE PROCEDURE

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8.

PROBLEM SYMPTOM CONFIRMATION

(a) Refer to Road Test.

Click here 2016 MY Sienna [12/2015 - 08/2016]; U660F (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 2016 - 2020 MY Sienna [12/2015 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: ELECTRONIC CIRCUIT INSPECTION PROCEDURE

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10.

DTC CHECK*

(a) Refer to DTC Check/Clear.

Click here 2016 MY Sienna [12/2015 - 08/2016]; U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DTC CHECK / CLEAR

Result

Proceed to

DTC is not output

A

DTC is output

B
B

GO TO STEP 18

A

11.

BASIC INSPECTION

(a) Refer to Automatic Transmission Fluid.

Click here 2016 MY Sienna [12/2015 - 08/2016]; U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE FLUID: ADJUSTMENT

(b) Refer to Park/Neutral Position Switch.

Click here 2016 MY Sienna [12/2015 - 08/2016]; U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: INSPECTION

(c) Refer to Shift Lever Assembly.

Click here 2016 MY Sienna [12/2015 - 08/2016]; U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): SHIFT LEVER: ADJUSTMENT

NG

GO TO STEP 21

OK

12.

MECHANICAL SYSTEM TESTS

(a) Refer to Mechanical System Tests.

Click here 2016 MY Sienna [12/2015 - 08/2016]; U660F (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 2016 MY Sienna [12/2015 - 08/2016]; U660F (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 2016 MY Sienna [12/2015 - 08/2016]; U660F (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 2016 MY Sienna [12/2015 - 08/2016]; U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: PROBLEM SYMPTOMS TABLE

NG

GO TO STEP 19

OK

16.

PROBLEM SYMPTOMS TABLE CHAPTER 2

(a) Refer to Problem Symptoms Table.

Click here 2016 MY Sienna [12/2015 - 08/2016]; U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: PROBLEM SYMPTOMS TABLE

NEXT

17.

COMPONENT INSPECTION
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GO TO STEP 21

18.

DTC CHART

(a) Refer to Diagnostic Trouble Code Chart.

Click here 2016 MY Sienna [12/2015 - 08/2016]; U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

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19.

CIRCUIT INSPECTION
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20.

IDENTIFICATION OF PROBLEM
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21.

REPAIR OR REPLACE
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22.

CONFIRMATION TEST
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END