P226A OBD-II: Water in Fuel Lamp Control Circuit
P226A Severity
Will P226A go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P226A?
Diesel vehicles have a sensor built into the fuel system to detect excessive water contamination in the fuel. There is a separate warning light "Water in Fuel" that should illuminated for the first few seconds when the engine is started and then go out. If the engine control module (PCM) cannot control the warning light, it will set code P226A.
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OBD II Fault Code
- OBD II P226A
OBD-II Code Powertrain Control Module (PCM) failure is defined as a Water in Fuel Lamp Control Circuit
Diesel vehicles have a sensor built into the fuel system to detect excessive water contamination in the fuel. There is a separate warning light "Water in Fuel" that should illuminated for the first few seconds when the engine is started and then go out. If the engine control module (PCM) cannot control the warning light, it will set code P226A.
Powertrain Control Module (PCM) failure Symptoms
- Water in fuel warning light doesn't illuminate on initial startup
Common Problems That Trigger the P226A Code
- Powertrain Control Module (PCM) failure
- Water in fuel bulb failure
- Wiring issue
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