Aisin 81-40LE - Automatic Transmission (European Emissions)

DTC P0563 (European Emissions)

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0563 System Voltage High

Conditions for Setting the DTC

* The system voltage is too high.
* The transmission control module (TCM) detects that the voltage is greater than 18 volts for 0.5 seconds continuously.
* The engine revolution is 600 RPM or greater.

Action Taken When the DTC Sets

The TCM will request the illumination of the MIL lamp and store the DTC when the TCM detects failures on 2 consecutive ignition cycles.

Conditions for Clearing the DTC

* The TCM turns off the MIL lamp when no further failures are detected on the next ignition cycles.
* The scan tool can clear the DTC from the TCM history.
* The TCM clears the DTC from the TCM history memory after 40 consecutive ignition cycles without fault.

Cause of Failure

* TCM wiring harness and connectors
* Battery
* TCM