Code Definition

B1479 — Wiper Washer Fluid Level Sensor Circuit Failure

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

About B1479

B1479 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 B1479 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

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.

B1479 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 washer fluid level sensor is a float type or thermistor type sensor mounted in the washer fluid bottle that signals the BCM when fluid is low so the driver can be alerted via the instrument cluster. Code B1479 is set when the control module detects an electrical fault in the sensor circuit, typically an open circuit, short to ground, short to voltage, or a signal that remains stuck regardless of actual fluid level. The sensor is a simple two wire device on most vehicles, with one wire providing reference voltage or ground and the other returning the float state. When this code is active th...

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