| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000ZL6D |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): HOW TO PROCEED WITH TROUBLESHOOTING; 2017 - 2020 MY Sienna [08/2016 - ] | ||
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HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the engine immobiliser system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer to confirm the trouble.
Click here
![2017 MY Sienna [08/2016 - 11/2017]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
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3. |
INSPECT BATTERY VOLTAGE |
(a) Measure the battery voltage.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
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4. |
ENGINE SWITCH ON (IG) |
HINT:
If the engine switch cannot be turned on (IG), communication with the Techstream can be confirmed by connecting the Techstream to the vehicle and turning a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and vehicle begins.
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5. |
INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
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Result |
Proceed to |
|---|---|
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ECU is connected, communication is normal |
A |
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ECU is connected, communication is malfunctioning |
B |
| B |
|
GO TO CAN COMMUNICATION SYSTEM
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6. |
INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the LIN communication system is functioning normally.
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Result |
Proceed to |
|---|---|
|
LIN DTC is not output |
A |
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LIN DTC is output |
B |
| B |
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GO TO LIN COMMUNICATION SYSTEM
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7. |
CHECK FOR DTC (SMART KEY SYSTEM)* |
(a) Check for DTCs and note any codes that are output.
(b) Clear the DTCs.
Click here
(c) Recheck for DTCs
. Based on the DTCs output above, try to cause the output of the same SFI system, steering lock system or engine immobiliser system DTC by reproducing the symptoms indicated by the DTC.
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
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SFI system DTC is output |
B |
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Steering lock system DTC is output |
C |
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Engine immobiliser system DTC is output |
D |
| B |
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GO TO DIAGNOSTIC TROUBLE CODE CHART
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| C |
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| D |
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8. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
|
Result |
Proceed to |
|---|---|
|
Fault is not listed in problem symptoms table |
A |
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Fault is listed in problem symptoms table |
B |
| B |
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9. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Data List / Active Test
Click here
(b) Terminals of ECU
Click here
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10. |
ADJUST, REPAIR OR REPLACE |
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11. |
CHECK FOR DTC (SMART KEY SYSTEM)* |
(a) Clear the DTCs.
Click here
(b) Recheck for DTCs
. Based on the DTCs output above, try to cause the output of the same SFI system, steering lock system or engine immobiliser system DTC by reproducing the symptoms indicated by the DTC.
HINT:
Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
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SFI system DTC is output |
B |
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Steering lock system DTC is output |
C |
|
Engine immobiliser system DTC is output |
D |
| A |
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END |
| B |
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GO TO DIAGNOSTIC TROUBLE CODE CHART
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| C |
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| D |
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