P0563

DTC P0563

CIRCUIT DESCRIPTION
The powertrain control module (PCM) continuously monitors that the system voltage stays within the proper range-If the PCM detects an excessively high system voltage, DTC P0563 will set. A high voltage condition may cause a stalling condition or other driveability concerns.

CONDITIONS FOR RUNNING THE DTC
- The engine run time is more than 20 seconds.
- Engine running above 1,200 RPM.
- Vehicle speed above 8 km/h (5 mph)

CONDITIONS FOR SETTING THE DTC
- The PCM senses the system voltage is above 19 volts.
- All of the conditions are present for 5 seconds.

ACTION TAKEN WHEN THE DTC SETS
- The PCM stores DTC P0563 in the PCM memory when the diagnostic runs and fails.
- The PCM will record the operating conditions at the time the diagnostic fails-The PCM stores this information in Failure Records.
- The PCM disables most outputs.
- The transmission defaults to a predetermined gear.
- The torque converter clutch (TCC) operation is inhibited.
- The instrument panel cluster (IPC) displays a message.
- The malfunction indicator lamp (MIL) will not illuminate.

CONDITIONS FOR CLEARING THE DTC
- The Conditions for Setting the DTC are no longer present.
- A history DTC will clear after 40 malfunction free ignition cycles.
- The powertrain control module (PCM) receives the clear code command from the scan tool.

TEST

Steps 1-5: