| DTC Code | DTC Name |
|---|---|
| B15EC | Backup Battery Degradation |
DESCRIPTION
This DTC is stored when the telephone transceiver assembly detects that the mayday battery is degraded.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15EC | Backup Battery Degradation | Mayday battery is degraded. | Mayday battery |
CAUTION / NOTICE / HINT
Note
When replacing the mayday battery, refer to Service Bulletin.
When the mayday battery is replaced, perform the necessary registration procedures for the telephone transceiver assembly. For details, refer to Service Bulletin.
PROCEDURE
REPLACE MAYDAY BATTERY
Replace the mayday battery.
Tech Tips
Refer to Service Bulletin.
| Result | ||
|---|---|---|
|
| NEXT |
|
CLEAR DTC
Clear the DTCs.
| Result | ||
|---|---|---|
|
| NEXT |
|
END (MAYDAY BATTERY WAS DEFECTIVE) |