C0564ABS Control Module System Voltage Low
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- 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.
- What you may notice
- ABS, stability and brake warnings, often together with other modules' warnings
- Electric parking brake or hill hold unavailable
- Warnings disappear after recharging the battery
- Likely causes
- LikelyWeak or deeply discharged 12 V battery
- PossibleHigh resistance in the module fuse, feed wire or ground
- PossibleAlternator or DC/DC converter not supplying enough voltage
- RareParasitic drain or aftermarket equipment pulling the battery down
- Repair
- Easy · Often possible to do yourself.Typical cost: €0 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.