DTC B1412

DTC B1412  : TEL Antenna Disconnected

DTCs (Telematics System)

NOTE:  Check the connectors for poor connections or loose terminals.

1. Problem verification

   -1. Clear the DTCs with the HDS.

   -2. Turn the vehicle to the OFF (LOCK) mode.

   -3. Open the driver's door, and wait more than 1 minute.

   -4. Turn the vehicle to the ON mode.

   -5. Wait for at least 1 minute.

   -6. Check for DTCs with the HDS.

   DTC Description	DTC
   B1412 TEL antenna disconnected

   Is DTC B1412 indicated?

   YES 

   The failure is duplicated, go to step 2.

   NO 

   Intermittent failure, the system is OK at this time.

2. Open wire check (TEL ANT 2 line, SH (TEL ANT 2) line)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Open the driver's door, and wait more than 1 minute.

   -3. Disconnect the following connectors.

   Telematics control unit connector D (2P)

   Roof antenna connector C (4P)

   -4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Telematics control unit connector D (2P): disconnected
   	Roof antenna connector C (4P): disconnected
   Test point 1	Telematics control unit connector D (2P) No. 1
   Test point 2	Roof antenna connector C (4P) No. 2 (male terminals):

   Test point 1	Telematics control unit connector D (2P) No. 2
   Test point 2	Roof antenna connector C (4P) No. 4 (male terminals):

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Replace the roof antenna .

   NO 

   There is an open in the wire. Replace the affected antenna lead.