Obdaryn

C0565ABS Control Module System Voltage High

  • Generic OBD-II code · Chassis
  • Turns on the check-engine light
  • Can trigger limp mode
  • Needs a drive cycle to confirm a fix
How the car detects it
C0565 is set when the ABS module measures a supply voltage above its permitted maximum; excess voltage can damage the valve and pump drivers, so the module stops regulating. Mitsubishi maps its C1056-17 to C0565 on the 2023 Outlander PHEV: 16 V or more on the ignition feed within 1 s, ASC, ABS, brake and parking brake lamps plus the MIL after two trips; ABS, EBD, ASC, brake assist and the electric parking brake are suspended. Ford's hybrids flag voltage above 16.9 V. Causes lie in the charging side – a faulty regulator or DC/DC converter, or jump-starting or charging with too high a voltage. The low-voltage counterpart is C0564.
What you may notice
  • ABS, stability, brake and parking brake warnings
  • Check-engine lamp on some models
  • Bulbs burning out or other modules reporting overvoltage
Likely causes
  • LikelyFaulty alternator regulator or DC/DC converter overcharging the 12 V system
  • PossibleJump-start or battery charger set to an excessive voltage
  • RarePoor ground making the module read voltage too high
Repair
Medium · Usually a job for a workshop.Typical cost: €0 – €800

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.