It can be performed with our loaner scan tool, most aftermarket tablet scanners, or an OEM Tool It is HIGHLY RECOMMENDED on ALL other vehicles getting our multipiece kit installed. Sierra Denali - 100% REQUIRED If you are installing our Half or Full multipiece bypass kits. Why would I need a Ride Height Sensor Trim Procedure? OR If any ride height sensors have been replacedĪ ride height trim calibration procedure is necessary, to re-zero the system. If the ride height of the vehicle changes, due to a shock or spring replacement The amount of current sent to a shock is proportional to how hard or soft the control This is the stock 'zero' suspension travelĪs the vehicle drives (moves up/down, side to side) an algorithm determines how muchĮlectrical current (mA) to send to each magneride shock in order to maintain a smooth The Suspension Control Module (SCM) is calibrated from the factory for its stock rideīased on the ride height sensor voltages. It reads the ride height sensor voltages, stores them in memory, and sets them as the normal ride height position It is a function used by the GM Dealerships scan tool to re-calibrate the suspension control module for anyĬhanges in ride height or ride height sensors to set the 'zero' ride height position of the Where are my shock and ride height sensors located? The SCM evaluates these inputs in order to separately control the shock absorbers, providing an enhanced ride and comfort level over the widest possible range of operating conditions. The SCM controls the damping forces according to the following factors: Four magnetorheological shock absorber actuators or struts Suspension control module (connected to 3 CAN busses) The electronic suspension control system consists of the following major components: Suspension characteristics can be changed at any time byĪctivating the driver control mode. The electronic suspension control system, individually controls the damping force of each of the four shock absorbers in order to keep the vehicle's body as calm as possible.Ĭhanges of the damping forces can be accomplished within milliseconds. The SCM provides current to the shocks via 2 term connector the terminals for each shock are labeled: When a deviation between commanded and actual current is detected, a DTC is set. The SCM continuously measures the actual current of each actuator. The current variation is performed by pulse width modulation (PWM) of the system voltage. The suspension control module (SCM) commands variable levels of current to each shock absorber actuator in response to rough road, braking or abrupt steering maneuver driving conditions. The SCM or Suspension Control Module is in control.

Ride control simulator