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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 1000 RPM. With no other charging system codes set. Set Condition: The battery sensed voltage is 1 volt above the charging goal for 13.47 seconds. The PCM senses the battery voltage turns off the field driver and senses the POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO GENERATOR OPERATION (K125) GEN FIELD CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE PCM TEST ACTION APPLICABILITY 1 NOTE: Make sure 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 (Diagnos- tic Procedure). 2 Turn the ignition off. t, actuate the Generator Field Control circuit. Does the test light illuminate brightly and flash on and off? All Yes → Replace the Generator. Perform POWERTRAIN VERIFICATION TEST VER - 3. No → Go To 3 209 DRIVEABILITY - NGC |