Code Definition

B1202 — Fuel Sender Circuit Open

System: Body  |  Type: Manufacturer-Specific  |  Make: Generic

About B1202

B1202 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1202 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B1202 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The fuel sender is a float and resistor assembly (or a Hall effect position sensor on some vehicles) located inside the fuel tank that sends a variable voltage or resistance signal to the instrument cluster or Body Control Module so the fuel gauge and low fuel warning can operate. DTC B1202 Fuel Sender Circuit Open specifically identifies an open circuit fault, which the monitoring module detects when the signal voltage rises to the pull up rail (typically near 5V or near battery voltage) and remains there beyond a calibrated time, indicating the sender is electrically disconnected from the mo...

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