Code Definition

B1424 — Power Window RR Motor Circuit Short To Battery

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

About B1424

B1424 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 B1424 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) 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.

B1424 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) monitors the right rear power window motor circuit for proper electrical operation. DTC B1424 is set when the module detects a short to battery voltage condition on the right rear motor circuit, meaning the circuit is being supplied with constant 12V from a source other than the module's own driver. The right rear window motor is a reversible polarity DC motor driven by H bridge style outputs in the BCM or rear door module that switch each side of the motor between battery, ground, and high impedance as required for up and down operati...

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