As this DTC is not normally output, it may be due to noise in the LIN communication system, etc.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| B278215 | Power Source Control System Circuit Short to Battery or Open | Noise in the LIN communication system, etc. | ID code box (immobiliser code ECU) | DTC Output Confirmation Operation:
No confirmation operation is necessary (monitoring is continuous) |
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The engine cannot be started. | - |
| DTC No. | Data List and Active Test |
|---|---|
| B278215 | - |
When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Smart Key. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
The smart entry and start system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and start system (for Start Function) after confirming that the communication systems are functioning properly.
When disconnecting the cable from the negative (-) battery terminal, some systems need to be initialized after the cable is reconnected.
Before replacing the ID code box (immobiliser code ECU), refer to Service Bulletin.
Clear the DTCs.
| Proceed to |
|---|
| NEXT |
NEXT
Check for DTCs.
| Result | Proceed to |
|---|---|
| B278215 is output | A |
| B278215 is not output | B |
A
B