Conditions for Clearing the DTC

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

The ECM will command the message OFF after one trip in which the diagnostic test has been run and passed.
The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.
The DTC can be cleared by using the scan tool Clear DTC Information function.

DTC P0563

Step	Action	Value(s)	Yes	No
Schematic Reference: Engine Controls Schematics for the 3.9L (LZ9) engine or Starting and Charging Schematics
1	Did you perform the Diagnostic System Check - Vehicle?	-	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the Ignition 1 Signal parameter in the Engine Electrical engine control module (ECM) data list. Does the scan tool indicate that the Ignition 1 Signal parameter is less than the specified value?	16 V	Go to Step 4	Go to Step 3
3	Measure the voltage at the battery terminals and compare it with the Ignition 1 Signal parameter in the ECM data list. Are the battery voltage and Ignition 1 Signal readings different by more than the value specified?	0.5 V	Go to Step 4	Go to Charging System Test
4	Replace the ECM. Refer to Control Module References for replacement, setup and programming. Did you complete the replacement?	-	Go to Step 5	-
5	Review and record the scan tool Fail Records data. Use the scan tool in order to clear the DTC. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. 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?	-	Go to Step 2	System OK