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DTC P0563: Testing

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Did you perform the DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL? If so, go to next step. If not, go to DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL  .
  2. Install a scan tool. Start the engine. With a scan tool, monitor the DTC INFORMATION for DTC P0562 in ENGINE CONTROLS. Does the scan tool indicate that DTC P0562 has passed? If so, go to INTERMITTENTS  . If not, go to next step.
  3. Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the IGNITION 1 SIGNAL parameter in the PCM data list. Does the scan tool indicate that the Ignition 1 Signal parameter is less than the specified range of 18.0V? If so, go to step  5 . If not, go to next step.
  4. Measure the voltage at the battery and compare it with the Ignition 1 Signal parameter in the PCM data list. Are the battery voltage and PCM Ignition 1 readings different by more than the value specified of 0.5V? If so, go to next step. If not, go to TEST A: CHARGING SYSTEM TEST in CHARGING SYSTEM article in ELECTRICAL.
  5. Replace the PCM. POWERTRAIN CONTROL MODULE in REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE. After replacement is complete, go to next step.
  6. Review and record the scan tool Fail Records data. Use the scan tool in order to clear the DTC(s). Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. See CONDITIONS FOR RUNNING THE DTC  . Using the scan tool, observe the SPECIFIC DTC INFORMATION for DTC P0563 until the test runs. Does the scan tool indicate that DTC P0563 failed this ignition? If so, go to step  3 . If not, then system is okay.
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