Fuel Injector Group Supply Voltage Circuit/Open
The P217D code indicates that the powertrain control module (PCM) has detected an open or short circuit in the supply voltage circuit for a group of fuel injectors. This can cause the injectors to not receive proper voltage, leading to misfires, poor fuel economy, and potential engine damage. The issue is often related to wiring, connectors, or the injector driver circuit within the PCM.
01. Most Common Causes
- Open or short in the injector group supply wiring
- Faulty fuel injector driver in the PCM
- Corroded or damaged connector at the injector or PCM
- Blown fuse or relay for the injector circuit
02. Symptoms You Will Notice
- Engine misfire or rough idle
- Check Engine Light illuminated
- Poor acceleration or hesitation
- Increased fuel consumption
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect wiring and connectors for damage or corrosion.
Step 3: Use a multimeter to check voltage at the injector group supply circuit.
Step 4: Test continuity and resistance in the circuit to identify opens or shorts.
Step 5: If wiring is okay, test the PCM injector driver output.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause engine misfires and potential catalytic converter damage.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, depending on whether it's a wiring repair or PCM replacement.