Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the injector for cylinder 2 in your car's engine. It's like a squirt gun that isn't working right and might be spraying too much fuel.
The P317C code indicates that the control circuit for the hydrogen injector in cylinder 2 is experiencing a high voltage condition, which could mean a malfunction in the injector or its circuit.
The P317C code is triggered when the Engine Control Module (ECM) detects a high voltage condition in the low side circuit of the hydrogen injector for cylinder 2. This could be due to a short circuit, a faulty injector, or a wiring issue. The injector is responsible for delivering hydrogen to the combustion chamber, and any disruption in its operation can affect engine performance.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty hydrogen injector
• Short circuit in the injector wiring
• Faulty ECM
ECM: Engine Control Module
Injector: A device that delivers fuel into the engine's combustion chamber
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connectors for cylinder 2 injector.
• Test the injector for proper operation.
• Replace the hydrogen injector for cylinder 2.
• Repair or replace damaged wiring or connectors.
• Update or reprogram the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$200 - $600
Moderate
• Toyota Mirai
• Hyundai Nexo
• Honda Clarity Fuel Cell
• Regular maintenance of fuel system
• Check and replace faulty wiring
• Use quality fuel
Engine Performance
• Avoid driving aggressively until the issue is fixed.
• Schedule a repair with a qualified mechanic.
Check your vehicle's warranty for coverage on fuel system components.
This code is relatively new and specific to vehicles using hydrogen fuel cells.
Moderate – Should be addressed soon to prevent further engine issues.
Ignoring this code may lead to increased emissions and reduced fuel efficiency.
• Engine running
• Vehicle stationary
The hydrogen injector for cylinder 2 is located on the engine block, typically on the side corresponding to cylinder 2.
Q: Can I drive with a P317C code?
A: It's not recommended as it may lead to poor engine performance and increased emissions.
Q: How do I clear a P317C code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, further diagnosis is needed.
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