Code Definition

B1175 (13) — RHF Door Lock Snib Switch Signal Circuit Open

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

About B1175

B1175 is a manufacturer-specific body diagnostic trouble code recorded for Mazda vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1175 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.

B1175 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) on Mazda vehicles monitors the right hand front (RHF) door lock snib switch input to determine the locked or unlocked position of the passenger side door. The snib switch is a small contact built into the door latch assembly that changes state as the internal lock knob (snib) is pushed down or lifted. DTC B1175 with the :13 sub code is logged when the BCM detects an open circuit condition on the snib switch signal line, meaning no valid input is being received from the switch under conditions where a signal is expected. This indicates a loss of continuity in the s...

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