P2688 OBD-II: Fuel Supply Heater Control Circuit Low
P2688 Severity
Will P2688 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 P2688?
The Fuel Supply Heater keeps the fuel above freezing. If the Fuel Supply Heater fails to operate as requested, code P2688 will be stored.
Ask our experts about P2688.
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