P0D93: Battery Charger Coupler Lock Control Circuit High
What to do
The car will probably refuse to charge, because it will not run current through a coupler it cannot lock. Driving is unaffected. Do not try to hold or wedge the plug in place.
What this code means
The circuit that drives the charging coupler's lock actuator is faulty.
The charging coupler locks into the car, and it is a safety interlock rather than an anti-theft feature — though it serves as both.
The reason it exists is that the contacts are live. A charging cable at full current is carrying more power than a domestic cooker ring, and pulling a live connector apart draws an arc across the separating contacts that pits the metal and can start a fire. So the sequence is fixed: the car stops the current first, and only then releases the lock. The lock is what makes that sequence enforceable rather than a request.
It also stops the cable being taken — either stolen, or unplugged by a stranger who wants the charge point — which is why most cars keep it locked for the whole session and release it with the doors.
A lock that will not engage usually stops the car charging at all, because the vehicle will not energise a coupler it cannot secure. That refusal is deliberate and is not worked around by holding the plug in.
At or above the upper limit, usually an open or a short to supply.
Likely causes
Start here
- Faulty charging coupler lock actuator · specialist
- Open circuit in control wiring · specialist
- Corroded or loose connector · specialist
Less common
- Control module driver failure · specialist
- Water ingress into connector · specialist
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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