Code Definition

B1026 (96) — Steering lock unit status signal lost

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

About B1026

B1026 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.

B1026 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

On Mazda push button start systems, in addition to the data communication link between the Keyless Entry Module (KEM) and the Steering Lock Unit (SLU), the SLU provides a discrete hardware status signal back to the KEM that reports the physical locked or unlocked state of the steering column. DTC B1026 (status signal lost variant) sets when the KEM reads the status line as absent, floating, or in an invalid state while other communication with the SLU is present or expected, meaning the KEM cannot confirm that the column is actually in the state it has commanded. The status line is typically a...

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