C05EA4WD/AWD Clutch B Actuator Control Circuit High
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- The clutch B actuator line reads too high, usually from contact with a battery feed or because the low-side switch no longer pulls it down. With coil-type clutches the danger is current flowing although the module wants the clutch open: in JTEKT's ITCC the coil current sets the transmitted torque, so a partly energised coil lets the clutch drag. Mitsubishi Electric's patent checks for shorts via the terminal voltages in P or N and then turns both drivers off; TI treats a short to battery as its own diagnostic in the DRV8873-Q1 motor driver. A dragging clutch B can show up as tyre scrub or binding in tight, slow turns. No public manufacturer case exists for C05EA; C05E9 covers the short to ground and C05E7 the open circuit.
- What you may notice
- AWD warning, all-wheel drive disabled
- Possible binding or tyre scrub when manoeuvring
- Likely causes
- LikelyActuator wire shorted to a supply line
- PossibleLow-side switch in the AWD module defective
- RareCorrosion bridging pins in the actuator connector
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.