Code Definition

C1906 — Ride Control LR Shock Actuator Circuit Open

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

About C1906

C1906 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 C1906 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

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.

C1906 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 Ride Control LR Shock Actuator circuit is part of the electronically controlled adaptive suspension system, where the suspension or air ride control module commands a solenoid actuator inside the left rear damper to vary shock firmness in real time. DTC C1906 sets when the control module detects an open circuit in the left rear shock actuator control or return path, meaning current cannot flow through the solenoid as commanded. The actuator is a variable solenoid that changes damping by altering an internal valve in response to a pulse width modulated command from the module. When this cod...

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