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Home >> Land Rover >> 2021 >> Defender 90 X >> Repair and Diagnosis (Single Page) >> Restraints >> Passive Restraints >> Supplementary Restraint System -- Defender/L663 >> Supplementary Restraint System (G2344399) >> Diagnosis And Testing >> Airbag Supplementary Restraint System (G2424832) >> Occupant Classification Sensor Control Module (OCSCM) Existing Module Programming
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Occupant Classification Sensor Control Module (OCSCM) Existing Module Programming

NOTE: Do not attempt to install individual components from the Occupant Classification Sensor (OCS) service kit, as they are calibrated to function as a single assembly. The complete service kit consists of foam, occupant classification sensor bladder mat with attached smart digital pressure sensor. The Controller Area Network (CAN) type communication and LIN  type communication OCS types are NOT interchangeable. Make sure the correct service kit for the vehicle is being used.
  1. Check the seat and make sure all electrical connectors are secure. Make sure the seat is correctly mounted and fixings are tightened to the correct torque. Refer to: FRONT ROW SEAT - VEHICLES WITH: POWER SEATS /FRONT ROW SEAT - VEHICLES WITHOUT: POWER SEATS
    NOTE: Make sure the vehicle is stationary and on a level surface. The seat must be secure and in an upright position before performing the next step. Failure to do this could induce a DTC  .
  2. Connect the Jaguar Land Rover approved diagnostic equipment
  3. Set the ignition to ON and wait 10 seconds. Make sure the SRS  warning light is illuminated during the ignition test cycle. The SRS  warning light should then extinguish after the 10 seconds to confirm no SRS  faults exist
    NOTE: All OCS DTC  s will be set in the RCM.
  4. Wait 5 seconds then set the OCS control module in to security access mode, after going in to an extended diagnostic session
  5. Using the Jaguar Land Rover approved diagnostic equipment, refer to datalogger signals ECU calibration Data #1 Number (0xF124), ECU Delivery Assembly Number (0xF113), ECU Core Assembly Number (0xF111), ECU Strategy Number (0xF188). Make a note of the OCS control module part number to make sure it is the correct part number for the vehicle
  6. Using the Jaguar Land Rover approved diagnostic equipment, check and update the OCS control module to the latest level software. Make sure the ignition is set to OFF and wait at least 5 seconds
  7. Set the ignition to ON and wait at least 125 seconds. This will allow sufficient time for DTC  s to log in the RCM if any are present
  8. Using the Jaguar Land Rover approved diagnostic equipment, check for OCS and Restraints Control Module (RCM) DTC  s stored in the RCM. If no DTC  s are found and no SRS  warning light is illuminated, no further action is necessary. If any DTC  s are found and/or the SRS  warning light is illuminated, refer to the relevant service information and perform the relevant repair actions as necessary. Re-perform this procedure to confirm the repair