The Led Does Not Display The Status. (Led Malfunction)

Probable cause: 

No contract agreement, DCM malfunction, telematics button malfunction

Wiring diagram: 

Telematics Ref. to WIRING SYSTEM>TELEMATICS SYSTEM>WIRING DIAGRAM

Courtesy of SUBARU OF AMERICA, INC.

1. 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 

   • Subscription Status

   Is the data [Subscribed]?

   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 again.

     When the setting does not change to [TRUE] even after setting the provisioning again, replace the DCM. Ref. to ENTERTAINMENT & MONITORING>DATA COMMUNICATION MODULE

2. CHECK THE LED  .
   1. Turn the ignition switch to ON.
   2. Check the LED condition.

   Does the RED LED go off and the GREEN LED illuminate?

   Yes  : The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

   NOTE:

   In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause. 

   No  : Go to  3.

3. CHECK DTCS  .

   Read the DTC of [Telematics] using the Subaru Select Monitor. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) 

   Is DTC B2A0A displayed? If displayed, go to  A.

   Is DTC B2A0B displayed? If displayed, go to  B.

   If no DTC is displayed, go to  C.

   1. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC B2A0A RED LED CIRCUIT 
   2. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC B2A0B GREEN LED CIRCUIT 
   3. Go to  4.
4. CHECK THE LED ILLUMINATION CONDITION  .

   Using the Subaru Select Monitor, check the following items in the [Active Test] of [Telematics]. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>ACTIVE TEST 

   • RED LED Lighting
   • GREEN LED Lighting

   Is the LED turned on or off?

   Yes  : Go to  5.

   No  : Go to  6.

5. CHECK THE LED  .
   1. Turn the ignition switch to ON.
   2. Check the LED condition.

   Does the RED LED go off and the GREEN LED illuminate?

   Yes  : The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

   NOTE:

   In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause. 

   No  : Replace the DCM. Ref. to ENTERTAINMENT & MONITORING>DATA COMMUNICATION MODULE

6. CHECK THE LED  .
   1. Turn the ignition switch to OFF.
   2. Check that RED LED or GREEN LED illuminates when applying the battery voltage to it.
      CAUTION:

      Never connect the battery voltage terminals in reverse polarity, because reversed connection damages the telematics button (LED). 

      Terminals 

      RED side 

      No. 7 (+) - No. 1 (-):

      GREEN side 

      No. 4 (+) - No. 1 (-):

   Does the RED LED or the GREEN LED illuminate?

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

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