What Does C1912 Mean?
The ride control module has detected a short-to-ground in the right front shock actuator circuit. The control wire is making contact with chassis ground, disabling solenoid control at the RF corner. The shock defaults to its base damping setting.
Common Causes
40%
Control wire insulation abraded against the strut tower, subframe, or engine components
25%
Internal solenoid short to the shock absorber body/ground
25%
Water intrusion into the actuator connector
10%
Pinched wire at a harness mounting point
Diagnostic Steps
1
Step 1: Disconnect the RF actuator and measure resistance from each wire to ground. Below 10k ohms confirms a ground fault.
2
Step 2: Test solenoid resistance from terminals to the shock body for internal shorts.
3
Step 3: Inspect the harness for worn insulation, especially near the strut tower and engine bay routing.
4
Step 4: Check and clean the connector; apply dielectric grease after drying.
5
Step 5: Repair the short, clear codes, and verify proper damping control through all modes.
Estimated Repair Cost
$150 - $850
Parts + labor, varies by vehicle and location
The ride control module has detected a short-to-ground in the right front shock actuator circuit. The control wire is making contact with chassis ground, disabling solenoid control at the RF corner. The shock defaults to its base damping setting.
The most common cause of C1912 (Ride Control RF Shock Actuator Circuit Short To Ground) is: Control wire insulation abraded against the strut tower, subframe, or engine components
Typical repair costs for C1912 range from $150 to $850, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The RF damper is locked in default mode, causing uneven front suspension response. Steering feel and braking stability may be slightly degraded.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1912 to identify the root cause.
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Quick Info
Category
Chassis
System
Electronic Ride Control / Adaptive Suspension
Difficulty
Type
Manufacturer
Recommended Tools
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