DTC B1415

DTC B1415  : GPS Antenna Shorted to Ground

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
   B1415 GPS antenna shorted to Ground

   Is DTC B1415 indicated?

   YES 

   The failure is duplicated, go to step 2.

   NO 

   Intermittent failure, the system is OK at this time.

2. Determine possible failure area (GPS (telematics) antenna, others)

   -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 connector.

   Roof antenna connector C (4P)

   -4. Turn the vehicle to the ON mode.

   -5. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Roof antenna connector C (4P): disconnected
   Test point 1	Roof antenna connector C (4P) (male terminals) No. 1:
   Test point 2	Body ground

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

   Is there about 3.0 V - 3.6 V?

   YES 

   Replace the roof antenna .

   NO 

   Go to step 3.

3. Shorted wire check (GPS ANT (TEL) line to SH (GPS ANT (TEL)) line)

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

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

   -3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Roof antenna connector C (4P): disconnected
   Test point 1	Roof antenna connector C (4P) (male terminals) No. 1:
   Test point 2	Roof antenna connector C (4P) (male terminals) No. 3:

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

   Is there continuity?

   YES 

   There is a short in the wire. Replace the affected antenna lead.

   NO 

   The GPS ANT (TEL) wire is not shorted to SH (GPS ANT (TEL)) wire. Go to step 4.

4. Shorted wire check (GPS ANT (TEL) line)

   -1. Disconnect the following connector.

   Telematics control unit connector C (4P)

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

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

   Is there continuity?

   YES 

   There is a short to body ground in the wire. Replace the affected antenna lead.

   NO 

   Replace the telematics control unit .