DIAGNOSIS START CONDITION: When ignition switch is ON. DTC DETECTING CONDITION: Backup battery is disconnected for at least 5 seconds when the ignition switch is turned ON. (Detached backup battery connection, etc.) TROUBLE SYMPTOM: • ACN/SOS function cannot be used when the main battery is disconnected. • RED LED illuminates. CAUTION: CommCheck is required after replacing the DCM. Telematics System > OPERATION
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Dtc u0401 invalid data received from ecm/pcm "a"
NOTE:Refer to “LAN SYSTEM (DIAGNOSTICS)” for diagnostic procedure. Basic Diagnostic Procedure1. OUTLINE OF DIAGNOSIS (ENGINE TYPE FB)• Detect malfunction of CAN communication.• Judge as NG when data received from ECM is not normal.2. EXECUTION CONDITION (ENGINE TYPE FB)Secon ...