What Does P217D Mean?
The PCM has detected an open circuit or complete loss of voltage in the power supply feeding fuel injector group H. This prevents proper injector operation for this group of cylinders.
Safety Warning
Engine will run on reduced cylinders causing severe power loss and rough running. Unsafe for highway driving and may cause catalytic converter damage.
Common Causes
35%
Open circuit in injector power supply wiring
30%
Blown fuel injector fuse or fusible link
20%
Failed injector driver circuit in PCM
15%
Corroded or disconnected injector connector
Diagnostic Steps
1
Step 1: Check fuel injector power supply fuse and fusible links in fuse box - replace if blown and investigate cause
2
Step 2: Measure voltage at injector group H connectors with key on - should read battery voltage on supply side
3
Step 3: Inspect all connectors in injector group H circuit for looseness, corrosion, or physical damage
4
Step 4: Test continuity of power supply wire from fuse box through PCM to injector connectors
5
Step 5: If power and ground are present at injectors but code persists, test PCM injector driver circuit operation with oscilloscope
Estimated Repair Cost
$150 - $1,200
Parts + labor, varies by vehicle and location
The PCM has detected an open circuit or complete loss of voltage in the power supply feeding fuel injector group H. This prevents proper injector operation for this group of cylinders.
The most common cause of P217D (Fuel Injector Group "H" Supply Voltage Circuit/Open) is: Open circuit in injector power supply wiring
Typical repair costs for P217D range from $150 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Engine will run on reduced cylinders causing severe power loss and rough running. Unsafe for highway driving and may cause catalytic converter damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P217D to identify the root cause.
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Quick Info
Category
Powertrain
System
Fuel System
Difficulty
Type
Generic (SAE)
Recommended Tools
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