Chassis, generic

C061B ECM Request - Forced Traction Control Disable

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

C061B is not a brake fault at all. It records that the engine control module told the brake module to switch traction control off, usually because the engine can no longer cut torque on demand. A Hyundai patent spells out the logic: the TCS asks for a torque cut over CAN, the engine reports the torque it delivers, and if the gap stays outside ±10 % too often, TCS is turned off and a warning lamp lit. GM handled this with its own codes: PIC4740C lists C0242 ECM Indicated TCS Malfunction next to C0561, and PIT4169F tells technicians that the PCM usually holds a code too, possibly without a check engine lamp, and not to replace the EBCM. Fix the engine fault first. No maker documents C061B publicly.

Likely causes

Engine misfire or other engine fault that blocks torque reduction
Electronic throttle or torque model fault stored in the ECM
Corrupt or missing torque messages between engine and brake module
ECM software issue setting the disable request without a real fault

Symptoms

  • Traction control off lamp or Service Traction Control message
  • Stability control may also be unavailable
  • Engine codes stored, sometimes with the check engine lamp

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–500
Time0.5–3 h

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

Parts involved

ecmtcs module

Related codes

P0856P0857P0300

References: patents.google.com, static.nhtsa.gov, static.nhtsa.gov.