Code Definition

B1D07 (09) — Right Turn Indicator Component Failure

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

About B1D07

B1D07 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.

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.

B1D07 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 and monitors the right turn indicator output circuit to ensure correct electrical load and switching response during operation. DTC B1D07:09 is set when the BCM detects an abnormal condition in the right turn indicator circuit, such as incorrect current draw, missing load, or an electrical response that does not match the commanded state. The sub-code “:09” indicates a component failure, meaning the BCM has determined the fault is due to a failed load or device rather than a simple wiring short or open alone.

Quick Facts