DTC Troubleshooting: P0563
DTC P0563:
 ECM/PCM Power Source Circuit Unexpected Voltage
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Turn the ignition switch to LOCK (0).
  1. Wait 10 seconds.
  1. Turn the ignition switch to ON (II).
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0563 indicated?
YES -
Go to Step 7 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at PGM-FI main relay 1 and the ECM/PCM.■
  1. Turn the ignition switch to LOCK (0).
  1. Jump the SCS line with the HDS.
  1. Disconnect ECM/PCM connector A (49P).
  1. Measure the voltage between ECM/PCM connector terminal A7 and body ground.
Is there battery voltage?
YES -
Go to Step 13 .
NO -
Go to Step 11 .