C1761: OBD-II code C1761 flags a fault in the right front ride-height position sensor input — the suspension controller can't measure that corner's height.

Symptoms

• The 'Service Ride Control' warning is displayed and levelling on the right front corner is disabled.
• The vehicle may sit higher, lower, or crookedly at the right front because the module cannot verify its height.
• Adaptive damping at that corner reverts to a default level while the sensor input is unavailable.

Common causes

• A failed right front ride-height sensor with an open, shorted, or noisy output signal.
• A bent or disconnected sensor linkage that mechanically decouples the sensor arm from the suspension.
• Damaged wiring or a corroded connector between the right front height sensor and the controller.

What to do?

Inspect the sensor arm and its linkage for damage. Read live right-front height data — it should change smoothly when the corner is loaded and unloaded. Verify sensor power, ground, and signal wiring. Replace the sensor and recalibrate ride height as needed.