What are the common causes of P2D75?

A short to ground on the contactor D control wire. A failed negative contactor D. Corrosion at the contactor D connector. A faulty charger module driver. An open contactor D coil.

Read negative contactor D state on a scan tool. Inspect the contactor D control wire for a short to ground. Measure the control voltage at contactor D. Test the contactor D coil resistance. Replace contactor D if the coil is open. Clear the code and retest.

P2D75

Battery Charging System Negative Contactor D Control Circuit Low

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

What it means

P2D75 means Battery Charging System Negative Contactor D Control Circuit Low.

Check these first

A short to ground on the contactor D control wire
A failed negative contactor D
Corrosion at the contactor D connector
A faulty charger module driver
An open contactor D coil

What to do next

Read negative contactor D state on a scan tool
Inspect the contactor D control wire for a short to ground
Measure the control voltage at contactor D
Test the contactor D coil resistance
Replace contactor D if the coil is open
Clear the code and retest

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Updated

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