Code Definition

C1902 — Ride Control RR Shock Actuator Circuit Open

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

About C1902

C1902 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 C1902 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.

C1902 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 electronic ride control system varies damping at each corner using a shock actuator commanded by the ride control module. DTC C1902 sets specifically when the module detects an open circuit in the right rear shock actuator control circuit, meaning no current is flowing through the actuator winding, control wire, or return wire. The actuator is a solenoid or small motor that adjusts a valve inside the shock to change damping firmness. With this code set the right rear damper typically defaults to a fixed damping rate, the ride may feel uneven compared with the other corners, and a ride cont...

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