P0562

System Voltage Low

Q: What does fault code P0562 mean?

System Voltage Low. The ECM has detected that the system voltage is below the set threshold (typically below 10V for a sustained period).

Q: What are the possible causes of P0562?

Insufficient alternator output; Battery aged or damaged; Alternator belt slipping; Battery terminal corrosion or looseness; Excessive parasitic load in the circuit.

Severity: Medium Vehicle Speed & Idle Generic Code

Detailed Description

The ECM has detected that the system voltage is below the set threshold (typically below 10V for a sustained period).

Possible Causes

Insufficient alternator output

Battery aged or damaged

Alternator belt slipping

Battery terminal corrosion or looseness

Excessive parasitic load in the circuit.

Solutions & Repair Guide

Measure alternator output voltage (should be 13.8-14.4V with engine running); Check alternator belt tension; Perform a battery health test (load test); Check all ground connection points.

Disclaimer: The information above is for reference only and does not constitute professional repair advice. Actual causes may vary depending on vehicle make, model, year, and configuration. Always consult a qualified technician for accurate diagnosis.