Fault Family System: Powertrain (P-Codes) 12 SAE Codes

Fuel Level Sensor B Circuit

Diagnostic & Technical Explanation

P2065 (Fuel Level Sensor B Circuit) is the secondary fuel level sending unit found on vehicles with a saddle-style or dual-pickup fuel tank, reporting a signal that is implausible, out of range, or intermittent compared to sender A. A worn resistive float-arm track, a corroded sender connector inside the tank, and a wire chafed through at the tank-strap grommet are the common causes.

These 12 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 12 times.

Codes in this family (12)

Code	Definition	Repair coverage
P2065	Fuel Level Sensor B Circuit	3 ranked fixes
P2066	Fuel Level Sensor B Performance	3 ranked fixes
P2067	Fuel Level Sensor B Circuit Low	3 ranked fixes
P2068	Fuel Level Sensor B Circuit High	3 ranked fixes
P2069	Fuel Level Sensor B Circuit Intermittent	3 ranked fixes
P25B1	Fuel Level Sensor B Stuck	3 ranked fixes
P25D7	Fuel Level Sensor C Circuit	3 ranked fixes
P25D8	Fuel Level Sensor C Performance	3 ranked fixes
P25D9	Fuel Level Sensor C Circuit Low	3 ranked fixes
P25DA	Fuel Level Sensor C Circuit High	3 ranked fixes
P25DB	Fuel Level Sensor C Circuit Intermittent	3 ranked fixes
P25DC	Fuel Level Sensor C Stuck	3 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:

Procedures 2..n after the first-listed procedure
Aftermarket parts cost ranges in USD (est_parts_cost_min/max_usd)
Professional labor-hour estimates (est_labor_hours)
Step-by-step diagnostic and repair instructions
Replacement-part mappings and catalog lookups
6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)

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