- Key
- Transponder key coil
- Transponder key ECU assembly
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VJKY |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): B2796; No Communication in Immobiliser System; 2016 - 2020 MY Sienna [12/2015 - ] | ||
|
DTC |
B2796 |
No Communication in Immobiliser System |
DESCRIPTION
- DTC B2796 is stored when a key is inserted into the ignition key cylinder but no communication occurs between the key and transponder key ECU assembly.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2796 |
The key code cannot be transmitted. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When replacing the transponder key ECU assembly or key, 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)
).
- After performing repairs, perform the operation that fulfills the DTC output confirmation operation, and then confirm that no DTCs are output again.
PROCEDURE
|
1. |
CLEAR DTC |
(a) Clear the DTCs (See page
).
|
|
2. |
CHECK FOR DTC |
(a) Perform "DTC Output Confirmation Operation" procedure.
(b) Check for DTCs (See page
).
OK:
DTC B2796 is not output.
Result
|
Result |
Proceed to |
|---|---|
|
B2796 is not output |
A |
|
DTC B2796 is output for all of the door control transmitter assemblies |
B |
|
DTC B2796 is output for any of the door control transmitter assemblies |
C |
| A |
|
USE SIMULATION METHOD TO CHECK (See page
|
| C |
|
|
|
3. |
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 a transponder key ECU assembly, refer to Registration (See page
).
|
|
4. |
CLEAR DTC |
(a) Clear the DTCs (See page
).
|
|
5. |
CHECK FOR DTC |
(a) Perform "DTC Output Confirmation Operation" procedure.
(b) Check for DTCs (See page
).
OK:
DTC B2796 is not output.
| OK |
|
END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE) |
| NG |
|
REPLACE KEY THAT DTC IS OUTPUT |
|
6. |
REPLACE KEY |
(a) Replace the key for which the DTC was stored.
NOTICE:
Key ID code registration is necessary when replacing a key, refer to Registration (See page
).
|
|
7. |
CLEAR DTC |
(a) Clear the DTCs (See page
).
|
|
8. |
CHECK FOR DTC |
(a) Perform "DTC Output Confirmation Operation" procedure.
(b) Check for DTCs (See page
).
OK:
DTC B2796 is not output.
| OK |
|
END (KEY WAS DEFECTIVE) |
| NG |
|
|
|