Audio-Navigation System DTC 1702 (Navigation Unit)

DTC 1702  : XM Antenna Error

NOTE: 

• Check the vehicle 12 volt battery condition first .
• This audio DTC sets when there is poor connectors or loose terminals at the XM antenna connector or an open or short in the antenna lead.
• Before you troubleshoot, make sure to follow the General Troubleshooting Information .
• Check the connectors for poor connections or loose terminals.

1. Problem verification

   -1. Clear the hard error codes .

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

   -3. Wait for at least 6 seconds.

   -4. Turn the vehicle to the ON mode.

   -5. Turn on the audio system, and select the XM radio.

   -6. Check for hard error codes .

   Is DTC 1702 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 (XM antenna, others)

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

   -2. Disconnect the following connector.

   Roof antenna connector B (2P)

   -3. Turn the vehicle to the ON mode.

   -4. Measure the voltage between test points 1 and 2.

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

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

   Is there about 5.0 V?

   YES 

   Replace the roof antenna .

   NO 

   Go to step 3.

3. Shorted wire check (SAT/TER line)

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

   -2. Disconnect the following connector.

   Audio-navigation unit connector N (2P)

   -3. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Roof antenna connector B (2P): disconnected
   	Audio-navigation unit connector N (2P): disconnected
   Test point 1	Roof antenna connector B (2P) (male terminals) No. 1:
   Test point 2	Body ground

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

   Is there 1.0 MΩ or more?

   YES 

   The SAT/TER wire is not shorted to ground. Go to step 4.

   NO 

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

4. Shorted wire check (SAT/TER line to SH (SAT/TER) line)

   -1. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Roof antenna connector B (2P): disconnected
   	Audio-navigation unit connector N (2P): disconnected
   Test point 1	Roof antenna connector B (2P) (male terminals) No. 1:
   Test point 2	Roof antenna connector B (2P) (male terminals) No. 2:

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

   Is there 1.0 MΩ or more?

   YES 

   The SAT/TER wire is not shorted to SH (SAT/TER) wire. Go to step 5.

   NO 

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

5. Open wire check (SAT/TER line)

   -1. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Roof antenna connector B (2P): disconnected
   	Audio-navigation unit connector N (2P): disconnected
   Test point 1	Audio-navigation unit connector N (2P) No. 1
   Test point 2	Roof antenna connector B (2P) (male terminals) No. 1:

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

   Is there 1.0 Ω or less?

   YES 

   Replace the audio-navigation unit .

   NO 

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