What Does P216D Mean?
The PCM has detected an open circuit or loss of voltage in the fuel injector group 'F' power supply circuit. This affects a different bank or group of fuel injectors than group E.
Safety Warning
Engine will misfire severely or fail to start if injector group F has no power. Unsafe to drive with multiple misfires; can cause catalytic converter damage and sudden power loss.
Common Causes
35%
Blown fuse or fusible link in fuel injector group F power circuit
25%
Failed fuel injector driver relay or power relay for group F
20%
Open circuit or broken wire in injector group F power supply harness
12%
Corroded or damaged power connector at injector harness junction for group F
8%
PCM internal driver circuit failure or output stage fault
Diagnostic Steps
1
Step 1: Check all fuses and relays for fuel injector group F power supply using vehicle wiring diagram
2
Step 2: Measure voltage at fuel injector group F power supply wire with key on, engine running (should read battery voltage)
3
Step 3: Inspect fuel injector harness connectors for group F for corrosion, damage, or poor contact
4
Step 4: Trace power supply circuit from fuse/relay box to injector harness and test for continuity
5
Step 5: Verify PCM injector driver output signals using oscilloscope or noid light test
Estimated Repair Cost
$100 - $700
Parts + labor, varies by vehicle and location
The PCM has detected an open circuit or loss of voltage in the fuel injector group 'F' power supply circuit. This affects a different bank or group of fuel injectors than group E.
The most common cause of P216D (Fuel Injector Group "F" Supply Voltage Circuit/Open) is: Blown fuse or fusible link in fuel injector group F power circuit
Typical repair costs for P216D range from $100 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Engine will misfire severely or fail to start if injector group F has no power. Unsafe to drive with multiple misfires; can cause catalytic converter damage and sudden power loss.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P216D to identify the root cause.
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Quick Info
Category
Powertrain
System
Fuel Injection System
Difficulty
Type
Generic (SAE)
Recommended Tools
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