C1914: LF Shock Actuator Circuit Open
The C1914 code indicates an open circuit in the left front shock absorber actuator of the ride control system. The suspension control module detects a loss of electrical continuity in the actuator circuit. When the module commands a damping adjustment, it does not receive the expected feedback due to the circuit interruption.
1. Commonly Affected Makes
2. Most Common Causes
- Faulty left front shock actuator
- Open or broken wiring in the actuator circuit
- Corroded or loose actuator connector
- Blown suspension system fuse
- Defective suspension control module
3. Symptoms You Will Notice
- Illuminated Check Engine or Suspension Warning Light
- Reduced ride quality or abnormal handling
4. Step-by-Step Diagnosis
Scan for codes and verify C1914 is present
Inspect the left front shock actuator connector for corrosion or damage
Check the actuator wiring for opens or shorts using a multimeter
Test the actuator resistance and compare to specifications
Check the suspension system fuse and replace if blown
If all else passes, test the control module output and replace if necessary
5. Frequently Asked Questions
Is it safe to drive?▼
You can drive short distances, but the suspension may not adjust properly, leading to reduced ride comfort and handling. Have it diagnosed soon.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, depending on whether the actuator, wiring, or module needs replacement.