P0563

Tests 1 - 4:

SYMPTOM
P0563 - CHARGING SYSTEM VOLTAGE TOO HIGH

WHEN MONITORED
Ignition ON.

SET CONDITION
Supply voltage (B+) at the ECM > 17.0 volts.

POSSIBLE CAUSES
- Charging system failure
- ECM fused B(+) feeds voltage above 17.0 volts
- ECM ground circuits open or high resistance