DTC P0563: ECM Power Source Circuit High Voltage

1. Turn the ignition switch ON (II).

1. Check the BATTERY in the DATA LIST with the HDS.

Is about 18.2 V or higher indicated?

YES | - | Go to Step 3 .
NO | - | Go to Step 4 .

1. Check the battery voltage with a circuit tester.

Is about 18.2 V or higher indicated?

YES | - | Replace the battery, then go to Step 6 .
NO | - | Go to Step 8 .

1. Start the engine.

1. Check the BATTERY in the DATA LIST with the HDS.

Is about 18.2 V or higher indicated?

YES | - | Check the alternator, then go to Step 6 .
NO | - | Intermittent failure, system is OK at this time.■

1. Reset the ECM with the HDS.

1. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES | - | If DTC P0563 is indicated, check for poor connections or loose terminals at the ECM, then go to Step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO | - | Troubleshooting is complete.■

1. Update the ECM if it does not have the latest software, or substitute a known-good ECM.

1. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES | - | If DTC P0563 is indicated, check for poor connections or loose terminals at the ECM, then go to Step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO | - | If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. ■