P0563

Test 1 - Test 2:

Test 3 - Test 4:

SYMPTOM
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 battery voltage again. If the voltages are the same, the code is set.

POSSIBLE CAUSES
- Good trip equal to zero
- Generator operation
- (K125) GEN field control circuit shorted to battery voltage
- PCM