Line-out short circuit to GND
Disconnect the subwoofer (N16). Request 0xFD63 again and read out fault codes again. If the error remains active examine all connectors visually. Disconnect the subwoofer cables and check for short circuit. If it becomes passive then check if the subwoofer has an internal short circuit. Note. Before replacing the infotainment system update to the latest available software.
What you'll see
Bad or no sound from subwoofer.
System reaction
No system-reaction text recorded.
Diagnostic depth
If the Parameter System_Subwoofer=On and When Line-out short circuited to GND and ADC in range ½ VDD to ¼ VDD. This DTC will set/heal when the DID 0xFD63 is requested.
Line-out malfunction is triggered by any of the following conditions: - Faulty connector - Faulty wire harness - Faulty subwoofer N16