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AV U1244 GPS ANTENNA AV-627 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITH NAVIGATION] C D E F G H I J K L M B A O P U1244 GPS ANTENNA Description INFOID:0000000005528747 DTC Logic INFOID:0000000005528748 Diagnosis Procedure INFOID:0000000005528749 1. GPS ANTENNA CHECK Visually check GPS antenna and antenna feeder. Is the inspection result normal? YES >> GO TO 2. NO >> Repair malfunctioning parts. 2. CHECK AV CONTROL UNIT VOLTAGE 1. Disconnect GPS antenna connector. 2. Turn ignition switch ON. 3. Check voltage between AV control unit terminal and ground. Is the inspection result normal? YES >> INSPECTION END NO >> Replace AV control unit. Part name Description GPS ANTENNA GPS signal is received and transmitted to AV control unit. DTC Display contents of CONSULT-III DTC Detection Condition Possible causes U1244 GPS ANTENNA CONN GPS antenna connection malfunction is detected. GPS antenna disconnection. (+) ( − ) Voltage (Approx.) AV control unit Connector Terminal M380 110 Ground 5.0 V |