What are the common causes of P0D08?

Positive contactor A welded closed. A failed contactor A coil or driver. A control circuit keeping contactor A energized. Corroded or burned contactor A contacts. A charging control module fault.

Read positive contactor A state on a scan tool. Command contactor A open and listen for it. Test the contactor A control circuit. Inspect the contactor A contacts for welding. Replace contactor A if it stays closed. Clear the code and retest.

P0D08

Battery Charging System Positive Contactor A Stuck Closed

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

What it means

P0D08 means Battery Charging System Positive Contactor A Stuck Closed.

Check these first

Positive contactor A welded closed
A failed contactor A coil or driver
A control circuit keeping contactor A energized
Corroded or burned contactor A contacts
A charging control module fault

What to do next

Read positive contactor A state on a scan tool
Command contactor A open and listen for it
Test the contactor A control circuit
Inspect the contactor A contacts for welding
Replace contactor A if it stays closed
Clear the code and retest

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Updated

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