DTC B1492-15: Microphone #1 Input Signal - Circuit short to battery or open: Action

NOTE: If this DTC is set simultaneously with a cluster of DTCs including U200F-11, check symptoms for U200F-11 first, rectify the fault, clear DTCs and retest

Refer to the electrical circuit diagrams and check the infotainment master controller microphone 1 circuit for short circuit to power, open circuit, high resistance. Repair or replace wiring harness as necessary, clear the DTCs and retest
Refer to the electrical circuit diagrams and check the infotainment slave controller (where fitted) microphone 1 circuit for short circuit to power, open circuit, high resistance. Repair or replace wiring harness as necessary, clear the DTCs and retest