What are the common causes of P2D70?

An open or short in the contactor D control wire. A failed negative contactor D. Corrosion at the contactor D connector. Burned contactor D contacts. A faulty charger module driver.

Read negative contactor D state on a scan tool. Command contactor D through its range. Check the contactor D control circuit for opens and shorts. Inspect the contactor D contacts for burning. Replace negative contactor D if the contacts are welded. Clear the code and retest.

P2D70

Battery Charging System Negative Contactor D Circuit

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

What it means

P2D70 means Battery Charging System Negative Contactor D Circuit.

Check these first

An open or short in the contactor D control wire
A failed negative contactor D
Corrosion at the contactor D connector
Burned contactor D contacts
A faulty charger module driver

What to do next

Read negative contactor D state on a scan tool
Command contactor D through its range
Check the contactor D control circuit for opens and shorts
Inspect the contactor D contacts for burning
Replace negative contactor D if the contacts are welded
Clear the code and retest

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Updated

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