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Home >> Jeep >> 2021 >> Compass 80th Anniversary Edition, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> (Audio (Radio) (ETM) - Electrical Diagnostics) >> DTC Troubleshooting >> B143A-1A-Microphone 1 - Circuit Resistance Below Threshold >> Possible Causes

Possible Causes

Possible Causes
MICROPHONE 1 IN (+) CIRCUIT SHORTED TO MICROPHONE 1 IN (-) CIRCUIT
FRONT ROOF LAMP UNIT
RADIO

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .

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