Chassis, generic

C0611 Right Park Brake Actuator Control Circuit Low

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

C0611 means one of the two leads to the right parking brake motor is dragged toward ground. The harness to the right rear caliper rides on the suspension and passes close to the brake disc, so chafing against the knuckle or water in the plug are the usual suspects, followed by a shorted motor. H-bridge drivers such as TI's DRV8874-Q1 sense an output tied to ground as overcurrent and switch the bridge off, which leaves the motor without drive. Hyundai's bulletin for the Ioniq hybrids names C2417, short or open on the right motor, and fits an improved extension harness on that side. No maker publishes C0611. GM once listed C0611 in its connector test bulletin PIP5094 under an older, unrelated meaning.

Likely causes

Motor lead chafed through at the right rear knuckle or bracket
Water and corrosion bridging pins in the right caliper connector
Internal short in the right actuator motor

Symptoms

  • Parking brake warning lamp on
  • Right side does not apply; vehicle may roll on a slope if not in Park or in gear
  • Fuse for the parking brake circuit may blow

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€40–600
Time0.5–2 h

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

Parts involved

right epb actuatorepb control module

Related codes

C0610C0612C0613C060C

References: ti.com, static.nhtsa.gov, static.nhtsa.gov.