Code Definition

B1026 — Rear window wiper signal error

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

About B1026

B1026 is a manufacturer-specific body diagnostic trouble code recorded for Honda 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 Honda vehicles equipped with a rear window wiper system, the Body Control Module (or on some models the Multiplex Control Unit) manages the rear wiper and washer function by reading the rear wiper switch position and commanding the rear wiper motor through either a direct driver or a relay, often with a feedback park signal from the motor. DTC B1026 (rear window wiper signal error on Honda) sets when the module detects a signal that does not agree with its commanded state, such as a park signal that never changes when the motor is commanded on, a switch input stuck in an active state, or an...

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