System: Electrical · Standard: SAE J2012 generic code · Severity: Repair soon
The car will usually keep running, but continued driving risks secondary damage or an emissions failure. Book the repair.
Communication codes often have several companions. Diagnose the bus wiring and grounds before replacing modules.
Start by reading every stored and pending code, not just this one. A single fault frequently sets three or four codes at once, and the first one in the freeze-frame data is usually the cause while the rest are consequences.
The controller cannot communicate over its serial data link as expected. Serial Communication Link Malfunction is a generic electrical code defined by SAE J2012, so it carries the same meaning on every OBD-II vehicle.
Repair soon. The car will usually keep running, but continued driving risks secondary damage or an emissions failure. Book the repair.
In rough order of how often they turn out to be the problem: Wiring fault in the data bus; Poor ground connection; Failed module.
P0562 System Voltage LowP0563 System Voltage HighP0601 Internal Control Module Memory Check Sum ErrorP0606 Control Module Processor FaultCode number, system and definition follow the SAE J2012 / ISO 15031-6 generic diagnostic trouble code standard. Symptoms, causes and severity are the standard generic diagnostic logic for that fault. This page does not contain manufacturer-specific procedures, part numbers or pricing.