- Certification ECU
- Engine switch
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000ZL6L |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): B2784; Antenna Coil Open / Short; 2017 - 2020 MY Sienna [08/2016 - ] | ||
|
DTC |
B2784 |
Antenna Coil Open / Short |
DESCRIPTION
This DTC is stored when there is an open or short in the transponder key coil (built into the engine switch).
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2784 |
Transponder key coil is open or shorted. |
|
CAUTION / NOTICE / HINT
NOTICE:
If the certification ECU is replaced, register the key (See page
![2017 - 2020 MY Sienna [08/2016 - ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): REGISTRATION](/t3Portal/stylegraphics/info.gif)
).
PROCEDURE
|
1. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page
).
(b) Recheck for DTCs (See page
).
OK:
DTC B2784 is not output.
| OK |
|
|
|
2. |
REPLACE ENGINE SWITCH |
(a) Replace the engine switch (See page
).
|
|
3. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page
).
(b) Recheck for DTCs (See page
).
OK:
DTC B2784 is not output.
| OK |
|
END (ENGINE SWITCH WAS DEFECTIVE) |
| NG |
|
REPLACE SMART KEY ECU ASSEMBLY (See page
|
|
|