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.
- Check voltage 10.0 to 14.0 volts

Connector(s) ECM C634 (B), ECM C635 (B), ECM C636 (B).
- 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.