Microphone short circuit to Ubat
Disconnect the connector from the microphone. Wait 10 seconds. Read all fault codes again. If it's still active then visually inspect all connectors. Check for any potential short-circuit on the electric wire. Measure the wiring between ground and signal in the infotainment system. The measurement result should be around 8 V. Note. Before replacing the infotainment system update to the latest available software.
What you'll see
The infotainment system cannot receive signals from the microphone since it's broken.
System reaction
No system-reaction text recorded.
Diagnostic depth
If parameter System_Bluetooth = on, When Microphone input short circuited to Ubat and ADC in range 2.2v to 3.30v. This fault will be checked during run-time.
Microphone malfunction is triggered by any of the following conditions: - Faulty connector - Faulty wire harness - Faulty microphone U24