The System Does Not Notify The Center Even If The SOS Button Is Pressed

Probable cause:

No contract agreement, out of service area, DCM malfunction, antenna malfunction, server side malfunction, SOS button malfunction

CAUTION:

After the DCM is replaced, registrations of CommCheck and immobilizer system are required. Ref. to ENTERTAINMENT & MONITORING>TELEMATICS SYSTEM>OPERATION>REGISTRATION (COMM CHECK) .
Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

NOTE: Perform the diagnostics for "Phone conversation is not possible. (The microphone does not respond to a voice. No sound is heard from the speaker.)". Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>INSPECTION>PHONE CONVERSATION IS NOT POSSIBLE. (THE MICROPHONE DOES NOT RESPOND TO A VOICE. NO SOUND IS HEARD FROM THE SPEAKER.) .

CHECK THE SUBSCRIPTION STATUS .
Using the Subaru Select Monitor, check the following items in the [Data monitor] of [Telematics]. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DATA MONITOR .
- SOS Active
Is the data [TRUE]?

Yes: Go to 2.

No :
- The user does not have a service subscription; therefore, it is not a failure.
- When the user's service subscription is not set to [TRUE], set the provisioning.
When the setting does not change to [TRUE] even after setting the provisioning again, replace the DCM. Ref. to ENTERTAINMENT & MONITORING>DATA COMMUNICATION MODULE .
CHECK DTCS .
Read the DTC of [Telematics] using the Subaru Select Monitor. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

Are any DTCs displayed?

Yes: Perform the diagnosis for the displayed DTCs. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .

No: Go to 3.
CHECK THE RECEIVED SIGNAL STRENGTH WHEN THE SOS BUTTON WAS PRESSED (CHECK THE DATA MONITOR) .
Using the Subaru Select Monitor, check the following items in the [Data monitor] of [Telematics]. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DATA MONITOR .
- RSSI at SOS/ICALL (1)
Is the data 26 [%] or more?

Yes: Go to 5.

No: Go to 4.
CHECK THE AT & T CELLULAR COVERAGE AREA .
Check whether the SOS button was pressed within the cellular coverage area.

Is the location where the SOS button was pressed within the cellular coverage area? (For the cellular coverage area, refer to the AT & T website. The system operates only on 3G and 4G technology.)

Yes: Go to 5.

No: The SOS button was pressed outside the cellular coverage area.
CHECK THE COMMUNICATION STATUS OF WHEN THE SOS BUTTON WAS PRESSED (CHECK THE DATA MONITOR) .
Using the Subaru Select Monitor, check the following items in the [Data monitor] of [Telematics]. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DATA MONITOR .
- Call status at SOS/ICALL Event (1)
If the data shows [Call Started] or [Call Connected]; Go to A.

If the data shows [Call Not Started]; Go to B.

If the data shows [No Network Service]; Go to C.

If the data shows [Call Ended by SXM]; Go to D.
1. Go to 6.
2. Go to 7.
3. Replace the antenna. Ref. to ENTERTAINMENT & MONITORING>ANTENNA .
4. The connection ended due to a server-side reason; therefore, there is no failure on the vehicle.
CHECK THE TIME OF WHEN THE SOS BUTTON WAS PRESSED (CHECK THE DATA MONITOR) .
Using the Subaru Select Monitor, check the following items in the [Data monitor] of [Telematics]. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DATA MONITOR .
- Timestamp at Time of Button Push (1): Date
- Timestamp at Time of Button Push (1): UTC *UTC is the basis for local times worldwide.
NOTE: The time stamp is displayed in the Coordinated Universal Time (UTC), which is different from actual time at each location. Therefore, time difference needs to be corrected for use.
Example: [12/22 01:30 in UTC time] is corrected as [12/21 20:30 in New York time].

Does the time of the SOS button operation match with the data?

Yes: Go to 7.

No: Replace the DCM. Ref. to ENTERTAINMENT & MONITORING>DATA COMMUNICATION MODULE .
CHECK THE SOS BUTTON .
Check the SOS button. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC B2A08 SOS BUTTON CIRCUIT .

Is the check result OK?

Yes: Replace the DCM. Ref. to ENTERTAINMENT & MONITORING>DATA COMMUNICATION MODULE .

No: Replace the telematics button. Ref. to ENTERTAINMENT & MONITORING>SWITCHES AND HARNESS .