P0563

Steps 1 - 3:

Steps 4 - 6:

DTC P0563 System Voltage High




Circuit Description
The powertrain control module (PCM) monitors the system voltage on the ignition feed terminals to the PCM. A system voltage Diagnostic Trouble Code will set whenever the voltage is above a calibrated value. DTC P0563 is a type A code.

Conditions for Setting the DTC
- Ignition ON.
- System voltage is above 16.

Action Taken When the DTC Sets
- The PCM will not illuminate the malfunction indicator lamp (MIL) for the first time the malfunction is detected.
- The PCM will store as Failure Records conditions which were present when the Diagnostic Trouble Code was set. This information will not be stored as Freeze Frame data.

Conditions for Clearing the MIL/DTC
- A history Diagnostic Trouble Code P0563 will clear after 40 consecutive warm-up cycles have occurred without a fault.
- Diagnostic Trouble Code P0563 can be cleared by using the Scan Tool's "Clear Info" function.

Diagnostic Aids
Check for a faulty charging system components.