Faulty charge port lock or unlock actuator (internal short or failed motor or solenoid); Damaged wiring or short to voltage in the unlock control circuit; Corroded, contaminated or loose connector at the charge inlet or control module; Water ingress or debris in the charge inlet assembly; Faulty charger control module or driver circuit; Outdated or faulty control unit software, where the manufacturer has identified it as a cause.

P0D97

Battery Charger Coupler Unlock Control Circuit High.

Generic
Powertrain
Generic code
Low severity

How this code is built

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

What it means

P0D97 is a generic powertrain code meaning the control circuit for the battery charger coupler unlock (the mechanism that releases the charge connector or inlet lock) is reading high. The control unit commanded or monitored the unlock circuit and saw a voltage higher than expected, which points to a short to voltage, a fault in the actuator or its driver, or a wiring problem. It is found on plug-in hybrids and electric vehicles, and the exact circuit layout depends on the model.

Symptoms

Charge cable will not release from the vehicle inlet
Vehicle will not charge or charging stops or fails to start
Charge port lock behaves erratically or makes no noise when locking or unlocking
Warning light or message about the charging system
Fault code stored with the vehicle otherwise driveable

Possible causes

Faulty charge port lock or unlock actuator (internal short or failed motor or solenoid)likely
Damaged wiring or short to voltage in the unlock control circuitlikely
Corroded, contaminated or loose connector at the charge inlet or control modulepossible
Water ingress or debris in the charge inlet assemblypossible
Faulty charger control module or driver circuitrare
Outdated or faulty control unit software, where the manufacturer has identified it as a causerare

How to diagnose

Read all stored codes and freeze frame data, noting whether the fault is current or intermittent and whether other charging codes are present
Visually inspect the charge inlet, its seals and the connector for damage, water, dirt and corrosion
Try the unlock and lock function with the vehicle's normal controls and listen for actuator operation
Inspect the wiring and connectors between the charge inlet actuator and the control module for chafing, pin damage and corrosion
Check the supply, ground and control signal at the actuator connector against the manufacturer's wiring diagram
Check the control circuit for a short to voltage with the connector unplugged, following the model-specific procedure
Test the actuator resistance or operation against manufacturer specification
Check for applicable software updates or technical bulletins for the model

How to fix

Repair or replace damaged wiring to remove the short to voltage
Clean or replace corroded or damaged connectors and terminals
Replace the faulty charge port lock actuator or inlet assembly
Dry out and repair or replace the inlet if water ingress is found
Replace the charger control module only after wiring and actuator are proven good
Apply a manufacturer-issued software update if one addresses this fault

Can I keep driving?

Low severity

The car can usually be driven normally as this is a charging-system fault, but you may be unable to charge or release the cable. Book it in soon, especially if the cable is stuck or you rely on charging.

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