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Symptom: P0563-BATTERY VOLTAGE HIGH When Monitored and Set Condition: P0563-BATTERY VOLTAGE HIGH When Monitored: With the ignition on. Engine RPM greater than 380 RPM. Set Condition: The battery voltage is 1 volt greater than desired system voltage POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO GENERATOR OPERATION (K20) GEN FIELD CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE PCM TEST ACTION APPLICABILITY 1 NOTE: Ensure the Battery is in good condition. Using the Midtronics t, read DTCs and record the related Freeze Frame data. Is the Good Trip Counter displayed and equal to zero? All Yes → Go To 2 No → Refer to the INTERMITTENT CONDITION symptom in the Driveability category. 2 Turn the ignition off. t, actuate the Generator Field Driver circuit. Does the test light illuminate brightly and flash on and off? All Yes → Go To 4 No → Go To 3 438 DRIVEABILITY - NGC |