Code Definition

B1407 — Driver Power Window Up Circuit Open

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

About B1407

B1407 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 B1407 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.

B1407 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 Door Control Module (DCM) controls power window operation through driver and passenger window switches, supplying voltage to the window motor in the up or down direction based on switch input. DTC B1407 is set when the module commands the driver window 'Up' circuit and detects an open circuit or excessively high resistance preventing current flow to the motor. This is typically caused by a broken wire, a disconnected or backed out connector, a worn motor brush, or an internal break in the master switch contacts. When this code is active the driver window will f...

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