What Does P216A Mean?
The PCM has detected an open circuit or loss of voltage in the fuel injector group 'E' power supply circuit. This affects a specific bank or group of fuel injectors that share a common power feed.
Safety Warning
Engine will run rough, misfire, or may not start if multiple injectors are without power. Unsafe to drive with severe misfiring as it can cause catalytic converter damage and loss of power.
Common Causes
35%
Blown fuse or fusible link in fuel injector group E power circuit
25%
Failed fuel injector driver relay or power relay for group E
20%
Open circuit or broken wire in injector group E power supply harness
12%
Corroded or damaged power connector at injector harness junction
8%
PCM internal driver circuit failure or output stage fault
Diagnostic Steps
1
Step 1: Check all fuses and relays related to fuel injector power supply circuits using wiring diagram
2
Step 2: Measure voltage at fuel injector group E power supply wire with key on, engine running (should be battery voltage)
3
Step 3: Inspect fuel injector harness connectors for corrosion, damage, or loose connections
4
Step 4: Trace power supply circuit from fuse/relay to injector harness, checking for open circuits or breaks
5
Step 5: Test PCM injector driver output signals with oscilloscope or noid light to verify control side operation
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 'E' power supply circuit. This affects a specific bank or group of fuel injectors that share a common power feed.
The most common cause of P216A (Fuel Injector Group "E" Supply Voltage Circuit/Open) is: Blown fuse or fusible link in fuel injector group E power circuit
Typical repair costs for P216A range from $100 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Engine will run rough, misfire, or may not start if multiple injectors are without power. Unsafe to drive with severe misfiring as it can cause catalytic converter damage and loss of power.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P216A 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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