Our certified mechanics come to you · Get a fair and transparent estimate upfront
P2065 is a diagnostic trouble code (DTC) for "Fuel Level Sensor B Circuit". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
P2065 OBD-II Trouble Code: Fuel Level Sensor B Circuit
A P2065 trouble code refers to a detected problem with the fuel level sensor "B" circuit
A P2065 indicates that the Powertrain Control Module (PCM) has detected an irregular voltage signal from one of the fuel level sensors. Fuel sensors are used to gauge the amount of fuel currently in the gas tank. The "B" circuit indicates a specific area in the fuel level sensor circuit. This area should be denoted visibly on the hardware.
In the majority of cases, a faulty instrument cluster is to blame
A damaged fuel tank
Loose grounding wire, and shorted or broken circuitry.
In very rare cases, a PCM or other control module may be faulty and mistakenly registering the code.
However, due to the rarity and high expense involved in module replacement, it should only be considered a last-ditch resort after all over possibilities have been exhausted.
If a P2065 code applies to a vehicle, the fuel gauge will be inaccurate and erratic. In some cases, the fuel gauge may read a fuel level below zero. In cases where a vehicle is equipped with a "low fuel" warning, this warning bleeper may signal itself erratically, regardless of the actual level of fuel inside the tank.
In addition, the trouble code and illuminated dashboard trouble lamp will be activated. These symptoms are purely diagnostic in nature, and used only in order to indicate that there is a problem in the first place.
A P2065 code may be first identified by scanning it with an OBD-II code reader. Primary components in the fuel level system (such as the instrument cluster and fuel tank) should be inspected for signs of fault or damage. Running a smoke machine through the fuel system will give a visual indicator where any cracks (if any) are along the body. Any wiring and connectors related to the fuel level system should be checked out for sign of corrosion, fault, wear and disconnection. If all other possible causes have been ruled out, the PCM may be considered as a possible issue.
The electrical circuitry relating to the fuel delivery system should be thoroughly inspected, especially first before investing in expensive replacement components. Electrical problems are sometimes overlooked and components unnecessarily replaced instead.
Although it may not have a practical effect on the vehicle's drivability, not knowing how much fuel there really is in the gas tank can be a big concern, particularly on longer trips. In addition, certain causes (like a damaged fuel tank) that account for a P2065 may have further-reaching consequences.
Repaired or replaced faulty any problematic wiring related to the fuel level and delivery system
In the rare instance that the PCM or another control module is to blame for the trouble code, it should be reprogrammed or replaced
. It is important to keep in mind that this last-ditch option is very costly compared to smaller repairs. Therefore, it should only be considered once it has been identified as the problem with relative certainty.
In the case of fuel tank damage, the P2065 code will be likely reported alongside other trouble codes relating to the fuel delivery system.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.