Audio System DTC Troubleshooting: 1301
DTC 1301: GPS Antenna Error
How to use this manual.
Before you troubleshoot, review the How to Troubleshoot.
NOTE:
Check the connectors for poor connections or loose terminals.
■ Overview
If the detection circuit reference current does not match the threshold, the audio unit determines an abnormality and stores the DTC.
■ Inspection Outline
The components to be tested are indicated by a dotted line.
Inspection Items
- a. GNSS Antenna: GNSS Antenna Inspection
- b. Audio Unit: Audio Unit Inspection
a. GNSS Antenna Inspection
NOTE: Since there is no direct method to test the inspection item, troubleshooting is performed using a known-good component.
■ Test Procedure
Install a known-good GNSS antenna and attempt to reproduce the failure.
■ Results
If the failure is reproduced, there is a problem with other related components.
If the symptom/DTC goes away, the GNSS antenna must be faulty.
b. Audio Unit Inspection
■ Test Procedure
If the other inspection item(s) indicated a normal condition, then it is determined that the remaining audio unit is the cause.
■ Results
There is a problem with the audio unit.
■ Confirmation Procedure
1.Turn the vehicle to the ON mode.
