Active Suspension Crosslink Solenoid Malfunction
What does C0170 mean?
The C0170 code means the vehicle's onboard diagnostic system has detected: Active Suspension Crosslink Solenoid Malfunction. This is a moderate severity code.
Common Symptoms
- Suspension warning light on
- Excessive body roll during cornering
- Ride height uneven side to side
- Active roll control not functioning
- Vehicle sways more than normal
Probable Causes (Ranked by Likelihood)
- Failed crosslink solenoid valve Very High
- Hydraulic fluid leak in active stabilizer system High
- Corroded solenoid connector Moderate
- Active suspension module solenoid driver fault Low
Step-by-Step Diagnostic Procedure
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Scan suspension module for crosslink DTCs
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Inspect active stabilizer bar system for leaks
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Test crosslink solenoid resistance
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Check solenoid connector for corrosion
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Command solenoid with scan tool and observe response
Frequently Asked Questions
What is an active suspension crosslink?
The crosslink connects the left and right air springs or hydraulic dampers, allowing the system to transfer pressure between sides to reduce body roll during cornering and improve handling.
Is this system only on luxury vehicles?
Active roll control and crosslink systems are primarily found on larger luxury SUVs and high-performance vehicles where controlling body roll is important for both comfort and handling.
Can I drive normally without this system working?
Yes, but you will notice increased body roll during turns and potentially a less stable feel at highway speeds. The vehicle is still safe to drive but the handling will be degraded.