What are the common causes of P0D97?

A short to voltage on the coupler unlock control circuit. A failed unlock motor holding the line high. An open ground at the unlock motor. Water in the coupler connector.

Check the unlock control wire for a short to voltage. Inspect the coupler connector for water and corrosion. Verify the unlock motor ground. Command unlock with a scan tool and watch the signal. Replace the unlock motor or coupler assembly if the line stays high. Clear the code and retest.

P0D97

Battery Charger Coupler Unlock Control Circuit High

System: Powertrain control (P code)
Lamp: Check Engine Light
Category: Powertrain - Hybrid Propulsion

What it means

P0D97 means Battery Charger Coupler Unlock Control Circuit High.

Check these first

A short to voltage on the coupler unlock control circuit
A failed unlock motor holding the line high
An open ground at the unlock motor
Water in the coupler connector

What to do next

Check the unlock control wire for a short to voltage
Inspect the coupler connector for water and corrosion
Verify the unlock motor ground
Command unlock with a scan tool and watch the signal
Replace the unlock motor or coupler assembly if the line stays high
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.