Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the part that locks the charger plug into the car. It's like when a plug doesn't fit snugly into a socket.
The P0D91 code indicates an issue with the circuit responsible for controlling the lock mechanism of the battery charger coupler. This could be due to an open circuit or a failure in the control system.
The battery charger coupler lock is a mechanism that ensures the charging plug is securely connected to the vehicle during charging. The control circuit manages this lock, and an open circuit or fault can prevent the lock from functioning properly, leading to charging issues.
• Charging plug does not lock into place
• Charging process fails to start
• Warning light on the dashboard
• Faulty charger coupler lock mechanism
• Damaged wiring or connectors
• Failed control module
Coupler: A device used to connect two parts, in this case, the charger plug to the vehicle.
Circuit: A closed path through which an electric current flows.
• Inspect the charger coupler lock for physical damage.
• Check the wiring and connectors for continuity and damage.
• Test the control module for proper operation.
• Replace the charger coupler lock mechanism if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the control module if it is defective.
• Multimeter
• Screwdriver set
• OBD-II scanner
$100 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect charging equipment for wear and tear.
• Ensure proper handling of charging cables and connectors.
• Keep the charging area clean and free of debris.
Electrical Circuit Issue
• Do not force the charger plug if it doesn't lock.
• Regularly check the charging system for proper operation.
Check with the vehicle manufacturer for warranty coverage on charging components.
This code has been reported in vehicles with high mileage or frequent charging cycles, indicating wear and tear on the charging components.
Moderate – It should be addressed soon to ensure proper charging functionality.
Ensure all repairs are conducted by a qualified technician to avoid electrical hazards.
• Vehicle in 'Park' mode
• Charging cable connected
The battery charger coupler lock is typically located near the charging port of the vehicle.
Q: Can I still drive my car with this code?
A: Yes, but you may experience charging issues, which could affect the vehicle's electric range.
Q: Is this a common problem?
A: It can occur in vehicles that frequently charge or have high mileage.
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