Audio System DTC 1301
DTC 1301 : GPS Antenna Error
- Check the vehicle 12 volt battery condition first .
- This audio DTC sets when there are poor connectors or loose terminals at the GPS antenna connector or an open in GPS antenna lead.
- Before you troubleshoot, make sure to follow the General Troubleshooting Information .
- Check the connectors for poor connections or loose terminals.
- 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, and wait at least 1 minute.
-5. Check for hard error codes .
Is DTC 1301 indicated?
YES
The failure is duplicated, go to step 2.
NO
Intermittent failure, the system is OK at this time.
- Determine possible failure area (GPS line, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
GPS antenna 2P connector -3. Turn the vehicle to the ON mode.
-4. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode GPS antenna 2P connector: disconnected Test point 1 GPS antenna 2P connector (female terminals) No. 1: Test point 2 Body ground Is there about 5.0 V?
YES
Go to step 6.
NO
Go to step 3.
- Shorted wire check (GPS line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Audio unit connector K (2P) -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode GPS antenna 2P connector: disconnected Audio unit connector K (2P): disconnected Test point 1 Audio unit connector K (2P) No. 1 Test point 2 Body ground Is there continuity?
YES
There is a short to body ground in the wire between the GPS antenna and the audio unit. Replace the affected antenna lead.
NO
The GPS wire is not shorted. Go to step 4.
- Shorted wire check (GPS line to SH (GPS) line)
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode GPS antenna 2P connector: disconnected Audio unit connector K (2P): disconnected Test point 1 Audio unit connector K (2P) No. 1 Test point 2 Audio unit connector K (2P) No. 2 Is there continuity?
YES
There is a short in the wires between the GPS antenna and the audio unit. Replace the affected antenna lead.
NO
The GPS wire is not shorted to SH (GPS) wire. Go to step 5.
- Open wire check (GPS line)
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode GPS antenna 2P connector: disconnected Audio unit connector K (2P): disconnected Test point 1 GPS antenna 2P connector (female terminals) No. 1: Test point 2 Audio unit connector K (2P) No. 1 Is there continuity?
YES
NO
There is an open in the wire between the GPS antenna and the audio unit. Replace the affected antenna lead.
- GPS antenna check
-1. Clear the hard error codes .
-2. Turn the vehicle to the OFF (LOCK) mode.
-3. Substitute a known-good GPS antenna .
-4. Turn the vehicle to the ON mode, and wait at least 1 minute.
-5. Check for hard error codes .
Is DTC 1301 indicated?
YES
NO
Replace the original GPS antenna.