Workshop Manual

6E–364
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P0563 System Voltage High
060R200058
Circuit Description
The powertrain control module (PCM) monitors the
system voltage on the ignition feed terminals to the PCM.
A system voltage DTC will set whenever the voltage is
above a calibrated value.
Conditions for Setting the DTC
B Ignition “ON”.
B System voltage is above 16 volts for 40 seconds.
Action Taken When the DTC Sets
B The PCM will ON the MIL after second trip with
detected the fault.
B The PCM will store conditions which were present
when the DTC was set as Freeze Frame and in the
Failure Records data.
Conditions for Clearing the MIL/DTC
B A history DTC P0563 will clear after 40 consecutive
warm-up cycles have occurred without a fault.
B DTC P0563 can be cleared by using the Tech 2 “Clear
Info” function or by disconnecting the PCM battery
feed.
Diagnostic Aids
If the DTC sets when an accessory is operated, check for
a poor connection or excessive current draw.