Chassis, generic

C0564 ABS Control Module System Voltage Low

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

The ABS module needs a stable 12 V supply to switch its valves and pump. C0564 means its measured system voltage has dropped below the permitted minimum. Ford's hybrids accept 9.0 to 16.9 V and log anything outside as C0564 (low) or C0565 (high), suspending pump motor checks meanwhile. Mitsubishi's Outlander PHEV detects 10 V or less within 1 s under C1056-16 – without SAE number or MIL – and suspends ABS, EBD, ASC, traction control, brake assist and the electric parking brake. Typical triggers are a tired battery, cranking dips or a poor feed or ground to the module. Unlike C055B, which concerns only the pump motor feed, C0564 affects the whole module.

Likely causes

Weak or deeply discharged 12 V battery
High resistance in the module fuse, feed wire or ground
Alternator or DC/DC converter not supplying enough voltage
Parasitic drain or aftermarket equipment pulling the battery down

Symptoms

  • ABS, stability and brake warnings, often together with other modules' warnings
  • Electric parking brake or hill hold unavailable
  • Warnings disappear after recharging the battery

Repair estimate

DifficultyEasyDIY possible
Parts and labour€0–300
Time0.3–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

abs modulebattery

Related codes

C0565C055BC0563P0562

References: fordservicecontent.com, mitsubishitechinfo.com, mitsubishitechinfo.com.