The new eSTROKE system enables heavy vehicle service personnel to conduct quick, accurate brake stroke status checks. Sensors that are factory pre-installed and pre-calibrated as an integral part of MGM Brakes service chambers and spring brakes convert air-brake actuator shaft travel into an electronic signal. A Chassis Communications Module (CCM) monitors these signals and outputs wheel- specific blink codes. These reveal whether a brake chamber is experiencing normal stroke, overstroke, or is simply not functioning.