| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM1000000028LVR |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - ] |
| Title: NETWORKING: LIN COMMUNICATION SYSTEM: B278C87; Power Source Control System Missing Message; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - ] | ||
|
DTC |
B278C87 |
Power Source Control System Missing Message |
DESCRIPTION
When an internal malfunction is detected in the certification ECU (smart key ECU assembly), this DTC is stored.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
DTC Output from |
|---|---|---|---|---|
|
B278C87 |
Power Source Control System Missing Message |
An internal malfunction occurs in the certification ECU (smart key ECU assembly). |
Certification ECU (smart key ECU assembly) |
Smart Key |
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the certification ECU (smart key ECU assembly), refer to Registration.
for HV Model: Click here
![2023 - 2025 MY Corolla Corolla HV [09/2022 - ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
for Gasoline Model: Click here
PROCEDURE
|
1. |
CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Smart Key > Clear DTCs
|
|
2. |
CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Smart Key > Trouble Codes
OK:
DTC B278C87 is not output.
| OK |
|
| NG |
|
|
|