Chassis, generic

C004F ABS Control Module Over Temperature

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

Set when the ABS/ESC control module or its integrated pump motor reaches a temperature above the safe operating limit. Repeated or prolonged pressure modulation, for example during long downhill ABS use, frequent stability interventions or an electrical fault that keeps the pump running, heats the hydraulic unit and its motor; the module monitors an internal temperature model or sensor and stores this code to protect the hardware. It temporarily disables ABS, traction and stability control until the unit cools, then restores them. A persistent over-temperature points to a seized pump, a stuck valve causing continuous pumping or a control fault. Base braking remains and the ABS warning lamp is set while the function is suspended. The entry follows the SAE J2012 generic definition and ABS hydraulic unit thermal protection.

Likely causes

Stuck valve causing continuous pump run
Pump motor seizing or high friction
Prolonged heavy ABS/ESC use

Symptoms

  • ABS and stability control temporarily disabled
  • Function returns after cooling
  • ABS warning lamp on during the event

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–1,800
Time0.5–4 h

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

Parts involved

abs module

Related codes

C0020C004DC004E

References: patents.google.com, en.wikipedia.org.