Code Definition

B1465 — Wiper Brake/Run Relay Circuit Open

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

About B1465

B1465 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 B1465 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.

B1465 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) controls the wiper system through a wiper brake/run relay that switches power between the wiper motor run circuit and the brake (park) circuit. DTC B1465 is set when the BCM commands the relay coil and detects an open circuit on the relay control or feedback path, indicating the BCM is unable to drive or sense the relay. The relay determines whether the wipers are driven through the active run path or through the park brake path that returns the blades to the home position when switched off. When this code is set, the wipers may fail to operate, may not park corre...

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