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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> (Engine Sound Enhancement Module (ESEM) - Electrical Diagnostics) >> DTC Troubleshooting >> B1400-92-Channel 1 Audio Speaker Output - Performance Or Incorrect Operation >> Possible Causes

Possible Causes

Possible Causes
CENTER I/P SPEAKER AND ESEM CONNECTIONS
AMPLIFIED CENTER I/P SPEAKER (+) CIRCUIT OPEN OR HIGH RESISTANCE
AMPLIFIED CENTER I/P SPEAKER (-) CIRCUIT OPEN OR HIGH RESISTANCE
AMPLIFIED CENTER I/P SPEAKER (+) CIRCUIT SHORTED TO THE AMPLIFIED CENTER I/P SPEAKER (-) CIRCUIT
AMPLIFIED CENTER I/P SPEAKER (+) CIRCUIT SHORT TO GROUND
AMPLIFIED CENTER I/P SPEAKER (-) CIRCUIT SHORT TO GROUND
AMPLIFIED CENTER I/P SPEAKER (+) CIRCUIT SHORT TO VOLTAGE
AMPLIFIED CENTER I/P SPEAKER (-) CIRCUIT SHORT TO VOLTAGE
AMPLIFIED CENTER I/P SPEAKER
ENGINE SOUND ENHANCEMENT MODULE (ESEM)

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