| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000ZMV8 |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): Engine does not Start because No Initial Combustion; 2017 - 2020 MY Sienna [08/2016 - ] | ||
|
Engine does not Start because No Initial Combustion |
DESCRIPTION
- When a key is inserted into the ignition key cylinder, the transponder key coil receives the key ID code and sends it to the transponder key ECU assembly.
- If this symptom occurs, there may be a communication problem between the transponder key coil and the transponder key ECU assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When replacing the key and transponder key ECU assembly, refer to the Registration (See page
![2016 - 2020 MY Sienna [12/2015 - ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): REGISTRATION](/t3Portal/stylegraphics/info.gif)
).
PROCEDURE
|
1. |
CLEAR DTC |
(a) Clear the DTCs (See page
).
|
|
2. |
CHECK FOR DTC |
(a) Check for DTCs (See page
).
HINT:
Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.
Result
|
Result |
Proceed to |
|---|---|
|
No DTC output |
A |
|
DTC output |
B |
| B |
|
|
|
3. |
READ VALUE USING TECHSTREAM (IMMOBILISER FUEL CUT) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Engine / Data List.
Engine
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Immobiliser Fuel Cut |
Status of immobiliser fuel cut/ ON or OFF |
- |
- |
OK:
The item in the Data List indicates "OFF".
Result
|
Result |
Proceed to |
|---|---|
|
NG |
A |
|
OK |
B |
| B |
|
|
|
4. |
CHECK SECURITY INDICATOR LIGHT OPERATION |
(a) When the key inserted in ignition key cylinder, check that the security indicator light off.
OK:
The security indicator light off.
| OK |
|
|
|
5. |
CHECK SECURITY INDICATOR LIGHT OPERATION |
(a) Perform inspection using a different key that has been registered to the vehicle.
(b) When the key inserted in ignition key cylinder, check that the security indicator light off.
OK:
The security indicator light off.
| NG |
|
|
|
6. |
CHECK WHETHER ENGINE STARTS WITH OTHER KEYS |
(a) Perform inspection using a different key that has been registered to the vehicle.
(b) It leaves for 5 seconds by the ignition switch ON status, and the engine starting operation is done.
Result
|
Result |
Proceed to |
|---|---|
|
Engine cannot be started |
A |
|
Engine can be started |
B |
| A |
|
| B |
|
|
7. |
REPLACE TRANSPONDER KEY COIL |
(a) Replace the transponder key coil (See page
).
|
|
8. |
CHECK WHETHER ENGINE STARTS |
(a) Using a registered key, turn the ignition switch to ON.
(b) Check that the engine starts 5 seconds after the ignition switch was turned to ON.
OK:
Engine starts normally.
| OK |
|
END (TRANSPONDER KEY COIL WAS DEFECTIVE) |
|
|
9. |
REPLACE TRANSPONDER KEY ECU ASSEMBLY |
(a) Replace the transponder key ECU assembly with a new one (See page
).
NOTICE:
Key ID code registration is necessary when replacing the transponder key ECU assembly, refer to Registration (See page
).
|
|
10. |
CHECK WHETHER ENGINE STARTS |
(a) Using a registered key, turn the ignition switch to ON.
(b) Check that the engine starts 5 seconds after the ignition switch was turned to ON.
OK:
Engine starts normally.
| A |
|
END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE) |
|
|
11. |
REPLACE KEY |
(a) Replace the key.
NOTICE:
Key ID code registration is necessary when replacing the door control transmitter assembly, refer to Registration (See page
).
|
|
12. |
CHECK WHETHER ENGINE STARTS |
(a) Using a registered key, turn the ignition switch to ON.
(b) Check that the engine starts 5 seconds after the ignition switch was turned to ON.
OK:
Engine starts normally.
| A |
|
END (KEY WAS DEFECTIVE) |
| B |
|
|
|