Circuit/System Testing
WARNING: This page is about a different car, the 2018 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the X1 harness connector at the X83 Auxiliary Audio Input.
- Test for less than 10 Ω between the ground circuit terminal 4 and ground.
- If 10 Ω or greater
- Ignition OFF.
- Test for less than 2 Ω in the ground circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, repair the open/high resistance in the ground connection.
- Go to next step: If less than 10 Ω
- Verify that a test lamp illuminates between the B+ circuit terminal 6 and ground.
- If the test lamp does not illuminate
- Ignition OFF, remove the test lamp.
- Test for less than 2 Ω in the B+ circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- Go to next step: If the test lamp illuminates
- Verify the USB cable is properly connected at all components and any in-line connections, and there is no damage to the cable or connections.
- If connection problems or cable damage is noted.
Perform the appropriate repair or replacement to correct any issues.
- Go to next step: If no connection problems or cable damage is noted.
- If connection problems or cable damage is noted.
- Replace the X83 Auxiliary Audio Input. Connect all harness connectors.
- Ignition ON, infotainment system ON.
- Connect a compatible USB device to the USB port and attempt to play audio.
- Verify audio is heard through the infotainment system while operating the USB device.
- If audio is not heard
- Replace the USB cable.
- Connect a compatible USB device to the USB port and attempt to play audio.
- Verify audio is heard through the infotainment system while operating the USB device.
- If audio is not heard, replace the A11 Radio.
- Go to next step: If audio is heard.
- All OK.
- Go to next step: If audio is heard
- All OK.