P0563

DTC P0563
Battery voltage not plausible Drive cycle A:Signal out of range - above maximum.

Possible causes by suggested order of priority:
^ Vehicle was jump started or charged at high voltage.
^ Battery connections/condition.
^ Connector(s) ECM C634 (B), ECM C635 (B), ECM C636 (B).
^ Alternator connections/condition.

Vehicle was jump started or charged at high voltage.
CHECK THE FOLLOWING:
^ Has the vehicle been jump started or charged at high voltage?
INFORMATION
^ This fault will be logged by the ECM if the battery voltage is measured at about 24 volts or higher.
^ So long as there is a known cause for the high voltage this fault can be safely ignored.
^ Clear the fault flags after checking for any further faults logged by the ECM.

Battery connections/condition.
VOLTAGE_12
^ Check voltage 10.0 to 14.0 volts.

Connector(s) ECM C634 (B), ECM C635 (B), ECM C636 (B).
CONNECTOR
^ Check for connector not correctly latched, backed out pins, damaged pins, corroded pins.

Alternator Connections/Condition.
CHECK THE FOLLOWING:
^ Alternator connections are sound.
^ Alternator is functioning correctly.
POSSIBLE FAULTS
^ Faulty alternator connections.
^ Faulty alternator.