Code Definition

B1262 — Servo Motor Defrost Circuit Failure

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

About B1262

B1262 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1262 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.

B1262 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 climate control module commands and monitors the defrost mode servo motor to position the defrost mode door, which directs airflow up to the windscreen for demist and defrost operation. DTC B1262 sets when the module detects a fault in the defrost servo motor circuit, meaning the servo position feedback is missing, out of range, or fails to track the commanded position within an expected time window. The servo is typically a small DC motor with an internal potentiometer for feedback, driven by H bridge outputs from the climate module on bidirectional command lines. With this code active th...

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