Seat Track Position Sensor

The seat track position sensor is comprised of integrated circuits called a Hall-effect switch. The seat track position sensor indicate to the RCM  the position of the driver seat, forward or rearward. The RCM  uses this information in determining the deployment rate of the dual-stage driver air bag module.

The RCM  supplies current to the seat track position sensor. Current flows through the switch, both in the forward or rearward seat positions to ground. The RCM  will sense the difference in this current draw, 6 mA (forward) or 15 mA (rearward), and use this information in determining the deployment rate of the dual-stage driver air bag module. If the RCM  detects current out of range, it will set a DTC.