P2068 on Jeep: How to Diagnose & Fix
Fuel Level Sensor "B" Circuit High Input
1 Jeep model · 1 documented issue · $200-$600 repair
P2068 on Jeep by model: symptoms, diagnosis and fix
The WK2 uses a saddle-style fuel tank with two fuel-level senders (one per lobe). The sender floats/rheostats stick or wear, and the PCM flags a sender that no longer tracks fuel consumption, setting P2068 (or related P0461/P0463) and a 'Service Fuel Level Sensor' message. Symptoms include a gauge stuck on Full or Empty, wildly bouncing readings, and an inaccurate Distance-to-Empty. It usually doesn't affect running but can strand an owner who trusts a stuck-full gauge, and it commonly requires dropping the tank to access the sender/module.
Common Symptoms
- Fuel gauge stuck on Full or Empty
- Gauge reading bounces or drops erratically
- 'Service Fuel Level Sensor' warning message
- Inaccurate Distance-to-Empty / range readout
- P2068 or related fuel-level codes
- Gauge slow to rise after fill-up
How to Fix
Scan for P2068/P0461/P0463 and confirm which sender is faulty. Inspect the sender for a stuck float and check connector/wiring; some intermittent stuck floats free up, but a failed sender requires replacement of the affected fuel-level sensor/sender module (often the in-tank pump/sender assembly), which typically means lowering the fuel tank. Recalibrate/verify gauge sweep after repair.
Sources for this issue (3)
P2068 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P2068 mean on a Jeep?
P2068 stands for "Fuel Level Sensor "B" Circuit High Input." Set when the PCM detects the Fuel Level Sensor 'B' signal voltage is higher than expected, typically indicating an open circuit, short to voltage, or a failed sender. On Jeep it is documented across 1 model: Grand Cherokee.
What are the most common causes of P2068?
The most common causes of P2068 are: Open in signal or ground circuit, Short to voltage (power) in the signal wire, Faulty fuel level sender 'B', Corroded connector / high resistance, PCM/ECM fault (rare). The specific cause varies by vehicle.
How much does it cost to fix P2068 on a Jeep?
Published repair estimates on Jeep range from $200 to $600 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.