DTC B1E25[01] Backup Battery Connection Malfunction (eCall unit)

1. Body control system check

Refer to "64.Body Control 10I.Troubleshooting(eCall unit) diagnostic system check - emergency call system controls".

2. Battery connection check

1) Inspect the connection status of the battery.

2) Repair the connection of the battery as necessary.

Procedure completion

=>Go to Current DTC check.

3. Current DTC check

1) Connect the scan tool.

2) Turn ON the ignition switch.

3) Observe the DTC information with a scan tool. Is a DTC set?

Yes

=>Go to eCall unit replacement.

No

Go to Intermittent conditions of body control system.

Refer to "223.Body Control 36D.Symptom(eCall unit) intermittent conditions of body control system".

4. eCall unit replacement

Refer to "9.Body, Cab, Accessories 9Z.Body, Cab, Accessories Electrical Control eCall unit removal".

Refer to "9.Body, Cab, Accessories 9Z.Body, Cab, Accessories Electrical Control eCall unit installation".

Refer to "9.Body, Cab, Accessories 9Z.Body, Cab, Accessories Electrical Control eCall unit setting".

Procedure completion

=>Go to Repair verification.

5. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch for 30 seconds or more.

3) Turn ON the ignition switch.

4) Observe the DTC information with a scan tool.