OBD-II code · Chassis
C05EC 4WD/AWD Clutch B Performance/Stuck Disengaged
4WD/AWD Clutch B Performance/Stuck Disengaged: the actuator will not engage when commanded. This affects engagement of the all-wheel-drive clutch.
Is it safe to drive with C05EC?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyClutch plates worn or actuator stuck
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Awd Clutch B
Related codes
- C05DD4WD/AWD Clutch A Performance/Stuck Disengaged
- C05E94WD/AWD Clutch B Actuator Control Circuit Low
- C05EA4WD/AWD Clutch B Actuator Control Circuit High
- C05EB4WD/AWD Clutch B Temperature Too High
- C05ED4WD/AWD Clutch B Stuck Engaged
- C05EE4WD/AWD Clutch B Engagement Fault
- C05EF4WD/AWD Clutch B Position Control Error
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.