Code Definition

B1325 — Door Ajar Lamp Circuit Short To Battery

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

About B1325

B1325 is a manufacturer-specific body diagnostic trouble code recorded for Ford vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1325 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.

B1325 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 door ajar warning lamp drive output and sets DTC B1325 when it detects that the drive circuit is shorted to battery voltage. The BCM expects to control the lamp ground side or drive side at its discretion, and a constant battery voltage on the controlled wire indicates the BCM has lost authority over the circuit. Common practical effects include the door ajar warning lamp being illuminated whenever the cluster is powered up regardless of door position, or in some cases driver complaints of a battery drain caused by the lamp staying on after key off. T...

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