P1563 OBD Code Definition:
P1563 System Voltage (Bank 2)
P1563 OBD Code Description:

Possible Symptoms

• Malfunction Indicator Light (MIL) ON
• Reduced Power
• Engine jerking

Possible Causes

• Fuse(s) faulty
• Wiring and/or Connector(s) from/to Quantity Adjuster  faulty
• Quantity Adjuster  not adjusted
• Quantity Adjuster  blocked/faulty

Possible Solutions

• Check Fuse(s)
• Check Wiring and/or Connector(s) from/to Quantity Adjuster
• Check/Adjust Quantity Adjuster
• Check/Replace Injection Pump

• High (max) Check battery voltage Check ground connection