TEST ACTION APPLICABILITY
3 Turn the ignition off.
Disconnect the Generator Field harness connector.
Disconnect the PCM harness connector.
Measure the voltage on the (K20) Gen Field Control circuit at the Generator Field
harness connector.
Is the voltage above 1.0 volt?
All
Yes → Repair the short to voltage in the (K20) Gen Field Control circuit.
Perform POWERTRAIN VERIFICATION TEST VER-3-NGC.
No → Go To 4
4 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER-3-NGC.
211
DRIVEABILITY - NGC
P0563-BATTERY VOLTAGE HIGH — Continued
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