P0D92

What it means

P0D92 is a generic powertrain code meaning the control circuit for the battery charger coupler lock (the charging inlet or plug latch actuator) is reading low voltage. The control unit commands the lock or unlock and sees a circuit voltage lower than expected, which suggests a short to earth, an open circuit or a fault in the driver. It is mainly seen on plug-in hybrids and electric vehicles, and the exact circuit layout depends on the model.

Symptoms

• Charging cable will not lock into the inlet, or will not release
• Vehicle will not start charging, or stops charging early
• Charging port warning light or message on the dashboard
• Malfunction indicator or hybrid system warning light on
• Charge cable stuck in the inlet and hard to remove

Possible causes

• Damaged or shorted wiring to the coupler lock actuator (chafed, pinched or water-damaged loom)likely
• Corroded, wet or loose connector at the charging inlet or lock actuatorlikely
• Faulty coupler lock actuator or motor with an internal shortlikely
• Blown fuse or fault in the supply to the lock circuitpossible
• Damaged charging inlet assembly from impact, debris or forced cable removalpossible
• Fault in the charger control module or lock driver circuitrare
• Outdated control unit software where the manufacturer has issued a fix for this faultrare

How to diagnose

1. Read all stored codes and freeze frame data, noting whether the fault is current or intermittent and whether other charging or hybrid codes are present
2. Check the manufacturer's service information for the lock circuit layout and any known issues for this model
3. Inspect the charging inlet for debris, damage, moisture or a bent latch, and try a different known good cable
4. Check the relevant fuse and the supply to the lock circuit
5. Inspect the wiring and connectors from the inlet to the control unit for chafing, corrosion and water ingress
6. Command the lock and unlock with a suitable scan tool and listen and watch for actuator movement
7. Measure the circuit voltage and resistance at the actuator connector against specification, checking for a short to earth or open circuit
8. Check for applicable software updates for the charger control unit before condemning it

How to fix

• Repair or replace damaged wiring and terminals in the lock circuit
• Clean, dry and secure the connector, replacing it if corroded
• Replace the coupler lock actuator or charging inlet assembly if faulty
• Replace the blown fuse only after finding the cause of the short
• Replace or reprogram the charger control unit only if testing proves it faulty or an applicable update exists

Can I keep driving?

Nearby codes

• P0D91GenericBattery Charger Coupler Lock Control Circuit/Open
• P0D93GenericBattery Charger Coupler Lock Control Circuit High