Code Definition

C1844 — Air Suspension Secondary Front Inflator Solenoid Output Circuit Failure

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

About C1844

C1844 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 C1844 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.

C1844 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

DTC C1844 is a manufacturer specific chassis code used on Ford and Lincoln vehicles with four corner or front air suspension, such as the Lincoln Continental, Mark VIII, and Navigator. Each air spring has an electrically operated inflator (fill) solenoid mounted on the spring that the air suspension control module energises to admit or hold compressed air, and this code refers to the secondary front inflator solenoid output circuit, the second of the two front spring solenoids. The module monitors current and voltage on the solenoid driver output, and sets C1844 when the feedback does not matc...

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