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AV-156 < DTC/CIRCUIT DIAGNOSIS > [NAVIGATION WITHOUT BOSE] U1244 GPS ANTENNA U1244 GPS ANTENNA DTC Logic INFOID:0000000011276846 DTC DETECTION LOGIC Diagnosis Procedure INFOID:0000000011276847 Regarding Wiring Diagram information, refer to . 1. GPS ANTENNA INSPECTION Visually inspect the GPS antenna and antenna feeder. Refer to AV-212, "Removal and Installation" . Is inspection result normal? YES >> GO TO 2. NO >> Repair or replace malfunctioning components. 2. CHECK AV CONTROL UNIT VOLTAGE 1. Disconnect AV control unit connector M141. 2. Turn ignition switch ON. 3. Check voltage between AV control unit connector M141 and ground. Is inspection result normal? YES >> Replace GPS antenna. Refer to AV-212, "Removal and Installation" . NO >> Replace AV control unit. Refer to AV-200, "Removal and Installation" . CONSULT Display DTC Detection Condition Possible Cause GPS ANTENNA CONN Open or short to ground is detected in GPS an- • GPS antenna disconnection. circuit. AV control unit Ground Voltage Connector Terminal M141 58 — 5.0 V |