C0614

Code

Generic C — Chassis

Right Park Brake Actuator Stuck On

Brand: Generic

Type: C — Chassis

Views: UK: 19 EN: 27 RU: 21

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Failed/locked parking brake actuator motor or gearbox
Mechanical binding at caliper, cable or parking brake mechanism
Corroded, damaged or disconnected wiring or connector to actuator
Blown fuse, faulty relay or inadequate supply/ground to actuator
Control module (EPB/ABS) output or sensor fault
Moisture, debris or rust seizing the actuator or caliper

Symptoms

EPB/parking brake warning lamp illuminated
Unable to release the parking brake (vehicle won’t roll easily)
Excessive drag or brake noise on right rear wheel
ABS/traction control warnings may appear if tied to same module
Stored fault(s) related to parking brake or actuator
Unusual motor noise or no noise when EPB is commanded

What to check

Retrieve freeze-frame and full DTC list with a capable scan tool; note any related ABS/EPB codes
Attempt active EPB on/off commands with scan tool and observe actuator behavior
Visually inspect actuator, caliper area and wiring harness for damage, corrosion or contamination
Check fuses/relays and battery voltage (while commanding actuator) — confirm ~12 V supply
Measure supply voltage at actuator connector during command and measure current draw if possible
Verify connector pin security and continuity to module ground and power

Signal parameters

Actuator supply voltage: near battery voltage (~11–14 V) when commanded
Standby voltage at actuator: ~0–1 V when not commanded (depends on design)
Actuator motor current: can spike during movement; typical range usually 1–15 A depending on motor — sustained high current indicates mechanical bind
Actuator motor resistance (unpowered): low ohms (motor windings) — open circuit indicates motor failure
Position/feedback sensor voltage: often within 0.5–4.5 V range depending on design; no or fixed voltage may indicate sensor fault
Communication: CAN/lin messages present between EPB module and ABS/BCM when commanded

Diagnostic algorithm

Safety first: park on level surface, chock wheels, support vehicle securely before removing wheels or working on brake hardware.
Connect full-feature scan tool, confirm C0614 and note related codes and freeze-frame data.
Use the scan tool to command the right EPB actuator to apply and release while an assistant watches/listens at the wheel and you monitor actuator connector voltage and current.
If actuator does not move but receives proper voltage, disconnect connector and measure motor resistance and insulation; compare to known-good values if available.
Inspect and wiggle wiring and connector while commanding to check for intermittent faults; repair any damaged wiring or corroded terminals.
If motor draws excessive current or is locked, remove the caliper/actuator assembly and check for seized pistons, rusted components or foreign objects. Free or replace components as needed.
If actuator receives no or low voltage when commanded, trace power/ground back to fuse/relay and EPB/ABS module outputs. Check module grounds and supply circuits.
If actuator and wiring are good but module output is missing or inconsistent, test module outputs and CAN communication; consider module replacement or reprogramming only after confirming wiring and actuator integrity.
After repairs, clear codes, perform full system relearn/calibration procedure per service manual (EPB relearn), and re-test operation under load and at rest.
Road-test or roll the vehicle to confirm brake releases fully and no dragging occurs; verify no reoccurrence of the code.

Likely causes

Actuator motor burned out or internal gears stripped
Caliper piston or parking brake shoe physically seized
Shorted or open wire in actuator supply or ground circuit
Corroded connector at actuator causing intermittent contact
Actuator position sensor failed or providing incorrect feedback

Fault status

⚠️ Status

Control module reports right parking brake actuator is commanded off but remains engaged or actuator feedback indicates movement blocked/stuck.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0-3.5 hours

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