Code Definition

C1285 — Booster Solenoid circuit Failure

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

About C1285

C1285 is a manufacturer-specific chassis diagnostic trouble code recorded for Ford vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1285 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.

C1285 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 vehicles equipped with an electric or electro hydraulic brake booster, the booster contains a solenoid that the ABS or brake control module energises to provide pedal assist or to generate hydraulic boost pressure during automated braking events such as adaptive cruise stops or collision mitigation. DTC C1285 sets when the controlling module detects an electrical fault in the booster solenoid circuit, including open coil, shorted coil, short to ground, short to battery, or a missing feedback current during commanded operation. When this code is active, automated braking features and brake a...

Join TaT to view the complete code information and diagnostic details.

Quick Facts