Code Definition

B1447 — Wiper Park Sense Circuit Open

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

About B1447

B1447 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 B1447 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.

B1447 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 Body Control Module (BCM), or on some vehicles the wiper control module, monitors the wiper park sense input to determine when the wiper output crank reaches the park position at the bottom of its travel. The park signal is generated by an internal contact strip or hall sensor inside the wiper motor that toggles each park revolution, allowing the BCM to time the motor stop and to coordinate the depressed park sweep. DTC B1447 is set specifically when the BCM sees the park sense circuit as electrically open, meaning the input remains at the unloaded pulled up reference voltage and never tra...

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