How are Active Suspension System Height Sensor issues diagnosed?
Diagnosing a height sensor can be easily completed with a diagnostic scan tool, but should be followed up with a hands on inspection with a multimeter to ensure the control module or circuit is not at fault. With a quality scan tool, a technician can observe the signal voltage from the height sensor, and determine if it is returning an incorrect signal voltage for the ride height at that corner of the vehicle. If the ride height and voltage shows discrepancy, the technician will disconnect the linkage for the height sensor, and move the sensor through it's entire range while checking with a multimeter. This will determine if the height sensor is receiving proper voltage, and sends proper voltage for the position at which it currently sits. If the range of the sensor is incorrect, or the sensor does not communicate in a closed loop with the control module, the sensor will be replaced.
How are Active Suspension System Height Sensors replaced?
Replacing height sensors is typically a matter of removing linkage from the sensor or chassis, and unbolting the unit from the vehicle. Finally, there will be an electrical connector that must be removed, cleaned, and placed on the new sensor. After installation is complete, the system will be retested to ensure the complaint does not return.
RepairPal Recommendations for Active Suspension System Height Sensor issues
Checking the operation of the height sensor is imperative to determining if failure has occurred, but don't forget that the sensor, and circuit, reside underneath the vehicle. This means the circuit is prone to damage from road debris, and should be inspected any time there is an issue with the active suspension system.
What to look out for when dealing with Active Suspension System Height Sensor issues