Chassis, generic

C05D9 4WD/AWD Clutch A Actuator Control Circuit Performance

Check engine lightUsually off
EmissionsNot relevant
Drive cycleRequired
Limp modePossible

The actuator circuit of clutch A is electrically intact, but the actuator does not respond as commanded, for example the measured current, motor speed or achieved torque differs from the target. Ford uses this code widely in its AWD module. Bronco 2021–2022: C05D9:19 or :99 with the wrench lamp and AWD off, caused by a discharged battery; check the battery and reprogram the module (TSB 22-2136, 22-2447). Bronco Sport 2.0L: C05D9:71 from a misaligned rear drive unit motor magnet ring (SSM 51117). E-Transit 2023 and Nautilus 2024: C05D9:74 with C0095:18 and loss of AWD until the next key cycle (SSM 52112); for Escape/Corsair 2023–2024 SSM 52788 blames AWD module software.

Likely causes

Low battery state of charge or weak supply voltage
AWD module software needs updating
Actuator motor worn or misassembled (magnet ring)
Ball ramp or gear train of the actuator binding

Symptoms

  • AWD fault message, AWD inoperative for the rest of the trip
  • Powertrain malfunction (wrench) lamp on
  • Function returns after restarting the vehicle

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–1,500
Time0.3–4 h

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

Parts involved

awd clutch a actuatorawd control module

Related codes

C05D8C05DAC05DBC05E8C0095C05F9

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.