Code Definition

C1459 — Adaptive Mode Switch Circuit Failure

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

About C1459

C1459 is a manufacturer-specific chassis diagnostic trouble code. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1459 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1459 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 C1459 fault code indicates the suspension control module has detected a fault on the adaptive mode switch circuit. The adaptive mode switch is a driver operated control (typically a dashboard or console button) used to select between damping profiles such as Comfort, Normal, and Sport on vehicles equipped with selectable adaptive damping. The switch provides a discrete or multi level voltage signal to the module indicating the selected mode. This code is set when the module detects an implausible signal state, such as multiple mode contacts closed simultaneously, a signal stuck outside the...

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