Short to voltage in the coupler lock actuator control wiring; Faulty charge port lock actuator or its internal position feedback switch; Damaged, corroded or water-contaminated connector at the charge inlet; Mechanical jam in the lock, such as a seized pin, ice, dirt or a damaged plug; Fault in the charger or control module driver circuit for the lock; Low or unstable 12 V supply causing a false circuit reading.

P0D93

Battery Charger Coupler Lock Control Circuit High.

Generic
Powertrain
Generic code
Medium severity

How this code is built

P: SystemPowertrain
0: Defined bySAE, the same on every car
D: AreaReserved
93: FaultThe specific fault in that area

What it means

P0D93 is a generic powertrain code meaning the control unit has detected a high voltage or high signal state in the control circuit for the battery charger coupler lock. This is the lock that holds the charging plug in the vehicle inlet on plug-in hybrids and electric vehicles. The control unit commanded the lock and saw a circuit state that did not match, typically a short to voltage or a fault within the actuator or driver circuit.

Symptoms

Charging plug will not lock into the inlet, or will not release afterwards
Vehicle will not start charging, or charging stops shortly after it begins
Charge port warning light or a hybrid or EV system message on the dashboard
Malfunction indicator lamp on, or a ready or drive inhibit during charging
Charging works only with certain cables or only intermittently

Possible causes

Short to voltage in the coupler lock actuator control wiringlikely
Faulty charge port lock actuator or its internal position feedback switchlikely
Damaged, corroded or water-contaminated connector at the charge inletlikely
Mechanical jam in the lock, such as a seized pin, ice, dirt or a damaged plugpossible
Fault in the charger or control module driver circuit for the lockpossible
Low or unstable 12 V supply causing a false circuit readingrare

How to diagnose

Read all stored and pending codes and record the freeze frame data, noting any other charging or high voltage system codes
Check the 12 V battery condition and charging voltage, as low supply can upset circuit monitoring
Visually inspect the charge inlet, lock mechanism and plug for damage, debris, ice or moisture, and try a different known good charging cable
Inspect the actuator connector and the wiring back towards the control module for chafing, corrosion, water ingress and pin damage
Operate the lock using a scan tool bidirectional test, if supported, and listen and watch for movement
Using the manufacturer wiring diagram, measure the control circuit voltage, ground and resistance to find a short to voltage or an open circuit
Test the actuator resistance and feedback switch against the specification for that model
Clear the code after repair and retest by locking and unlocking, then complete a charging cycle

How to fix

Repair or replace damaged wiring and fix any short to voltage in the lock control circuit
Clean, dry or replace the corroded or damaged charge inlet connector
Replace the charge port lock actuator if it is faulty or mechanically seized
Remove the obstruction, and repair or replace a damaged charging plug or inlet
Replace or reprogram the controlling module only after wiring and actuator faults are ruled out, following the manufacturer procedure
Restore the 12 V battery and charging supply to a healthy state if it was found to be weak

Can I keep driving?

Medium severity

The car can usually still be driven, as this fault mainly affects charging. However, you may not be able to charge reliably or release the plug, so have it fixed soon, and check the model's guidance if a high voltage system warning is showing.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.