OBD Codes List

Diagnostic reference · C0564

C0564

ABS Control Module System Voltage Low

System
Chassis control (C code)
Lamp
ABS Light
Category
Chassis

What it means

C0564 means ABS Control Module System Voltage Low.

Where it lives

For C0564, the circuit described runs through the module. The description of C0564 reports low voltage at the module.

Check these first

  • Low battery voltage or a weak charging system
  • A poor ground at the ABS module
  • A corroded or loose ABS module power connector
  • A blown ABS fuse or voltage drop in the feed circuit

What to do next

  1. Check battery voltage and charging output first
  2. Inspect the ABS module power and ground connections
  3. Check the ABS fuse and relay
  4. Measure voltage at the ABS module while cranking and running
  5. Repair any voltage drop in the feed or ground circuit
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-09-25.