Code Definition

B319A — Right Rear Window Switch Short to Ground

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

About B319A

B319A is a manufacturer-specific body diagnostic trouble code recorded for Holden vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B319A 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.

B319A 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) monitors the right rear power window switch input circuit for correct voltage levels corresponding to switch operation. The window switch normally pulls the signal line to a defined state only when pressed, and the BCM interprets these inputs to drive the window motor. DTC B319A is set when the BCM detects the switch signal circuit is pulled to ground when no switch activation is commanded, or remains grounded for longer than the calibrated time, indicating a short to ground condition. When this code is set the affected window may operate erratically, stay inopera...

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