Code Definition

B1625 — Lamp Keypad Output Short Circuit To Battery

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

About B1625

B1625 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 B1625 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.

B1625 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 illuminated keyless entry keypad on the driver door pillar through a dedicated lamp output circuit. DTC B1625 sets when the BCM detects a short circuit to battery voltage on the keypad lamp output wire, meaning the BCM cannot pull the line to its commanded state because an unintended battery source is feeding into the circuit. This is typically caused by chafed wiring inside the door jamb where the lamp circuit insulation has rubbed through and contacted a battery feed wire, or by an aftermarket accessory miswired to the keypad output. When this code ...

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