Code Definition

B1D06 — Left Turn Signal Circuit

System: Body  |  Type: Manufacturer-Specific  |  Make: Land Rover

About B1D06

B1D06 is a manufacturer-specific body diagnostic trouble code recorded for Land Rover vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1D06 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

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.

B1D06 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 Land Rover vehicles controls and monitors the left turn signal output circuit, which feeds the left front, left rear, and where fitted the left side repeater turn signal lamps. The BCM commands the output on and off at the standard flash rate when the left turn signal or hazard function is requested and continually monitors the load current and circuit feedback to verify correct operation. DTC B1D06 is set when the BCM detects an electrical fault in the left turn signal circuit, such as an open circuit, short to ground, short to battery, or an unexpected load c...

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