OEM Mercury Occupant Detection Sensor

Mercury Occupant Detection Sensor Parts and Q&A

• Position Sensor, Front
  7T4Z-14B416-B
  Q: What are the steps involved in servicing the Occupant Detection Sensor system on Mercury Mariner?

  A:

  The Occupant Detection Sensor (ODS) system service requires performing all calibrations simultaneously when replacing any component in the assembly which includes the seat cushion foam pad and bladder with pressure sensor and ODSM. Separating production ODS from service ODS depends on the state of their electrical connector which permits disconnection for production ODS but the service ODS has a glued connector that should remain untouched. Start the work only after checking that the Supplemental Restraints System (SRS) operates normally without defects. The service begins by taking out the passenger seat and turning off SRS power before unhooking electrical connectors alongside separating wiring clips which include the ODSM and pressure sensor connectors. Detach all heated seat components from the seat including heated seats and cushion heater mats when the seat features this functionality. Unscrew the four bolts connecting the seat cushion to the track and eliminate the seat cushion from its position with the pan assembly without applying any pressure that might damage parts. Drain the pressure sensor from its bracket by bending its retaining tab. Then you can remove the hose components which include the ODSM, bladder retainers and ODS bladder rivets. The ODS hose and pressure sensor assembly needs to be fed through the seat cushion pan opening before removing the entire component with the bladder. After disassembly of the trim cover and service kit and any ODS system resets need to be performed through a scan tool. Route the pressure sensor and hose properly while preventing any kinks before installing the ODS bladder through pin-type retainers. Attach the pressure sensor to its bracket by properly sealing the retaining tab before fitting the ODSM into place through riveted installation. You should place the foam pad before installing the seat cushion trim while inspecting for outside objects. The seat track receives a seat cushion and pan assembly which should be fastened using four bolts maintained at 25 Nm (18 lb-ft) torque. Reconnect every electrical connector together with heating seat wiring clips as needed before placing the front passenger seat back using pre-timed SRS reactivation. Execute the ODS system reset only when the ODSM shows 8 to 18 volts of voltage and operates within 6°C to 36°C (42°F to 97°F) temperature range with no objects present on the seat. Perform the ODS system reset after the ignition switch ON cycle waits for at least eight seconds. The ODS system requires a second reset if the initial attempt fails so check for damage in all ODS system components including the connector, wiring, and pressure sensor hose. To finish the verification process check the air bag warning light using a scan tool while monitoring the indicator during an ignition cycle and then confirm its six second illumination before complete shutdown of the warning light system. Investigate and solve all observed faults before clearing all data through the scan tool.