What Does P216E Mean?
The PCM has detected abnormally low voltage in the power supply circuit feeding fuel injector group F. This indicates a problem with the injector driver circuit, wiring, or power supply to this specific bank of injectors.
Safety Warning
Engine may run rough, misfire, or fail to start. If drivable, reduced power and poor fuel economy are likely, with potential catalytic converter damage from misfires.
Common Causes
35%
Damaged or chafed wiring harness causing short to ground
25%
Faulty fuel injector driver circuit in PCM/ECM
20%
Failed fuel injector with internal short
15%
Corroded or loose connector at injector or PCM
5%
Blown fuse or faulty injector power relay
Diagnostic Steps
1
Step 1: Inspect fuel injector group F wiring harness for damage, chafing, or shorts to ground
2
Step 2: Check all connectors for corrosion, bent pins, and proper seating at injectors and PCM
3
Step 3: Measure voltage at injector supply circuit with key on, engine off (should read battery voltage)
4
Step 4: Test individual injector resistance and compare to specifications
5
Step 5: If all wiring and injectors test good, suspect PCM injector driver circuit failure
Estimated Repair Cost
$150 - $1,200
Parts + labor, varies by vehicle and location
The PCM has detected abnormally low voltage in the power supply circuit feeding fuel injector group F. This indicates a problem with the injector driver circuit, wiring, or power supply to this specific bank of injectors.
The most common cause of P216E (Fuel Injector Group "F" Supply Voltage Circuit Low) is: Damaged or chafed wiring harness causing short to ground
Typical repair costs for P216E range from $150 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Engine may run rough, misfire, or fail to start. If drivable, reduced power and poor fuel economy are likely, with potential catalytic converter damage from misfires.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P216E 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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