What are the common causes of P216D?

An open or short in the fuel injector group F supply voltage circuit. Corrosion in the group F injector wiring or connectors. A failed group F fuel injector. A failed group F supply relay. A failed ECM or PCM.

Read the group F injector supply voltage on a scan tool. Test the group F supply circuit for an open or a short. Check the group F supply relay. Inspect the group F injector connectors. Test the ECM or PCM injector driver. Clear the code and retest.

P216D

Fuel Injector Group F Supply Voltage Circuit/Open

System: Fuel and air metering (P code)
Lamp: Check Engine Light
Category: Powertrain - Fuel/Air Metering

What it means

P216D means Fuel Injector Group F Supply Voltage Circuit/Open.

Where it lives

For P216D, the injector sits on the circuit this code reports. The description of P216D reports the injector as open.

Check these first

An open or short in the fuel injector group F supply voltage circuit
Corrosion in the group F injector wiring or connectors
A failed group F fuel injector
A failed group F supply relay
A failed ECM or PCM

What to do next

Read the group F injector supply voltage on a scan tool
Test the group F supply circuit for an open or a short
Check the group F supply relay
Inspect the group F injector connectors
Test the ECM or PCM injector driver
Clear the code and retest

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Updated

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