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ME9 / P0563 00

Read the instructions below then start the fault diagnostic procedure.

  P0563 00


System Voltage High



On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON for more than 180 seconds.

Fault criteria:

Voltage via main relay is greater than 18 V.

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

To detect the voltage that supplies ECM.
Check if the vehicle was connected to a vehicle with 24 V system prior to fault diagnosis.

Functions in the diagnostic tool related to the fault:

Test value:
Battery Voltage:

(See also description of readings/activations in diagnostic tool)