Occupant Classification Module
OCCUPANT CLASSIFICATION MODULEWARNING: TO AVOID PERSONAL INJURY OR DEATH, ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, AIRBAG, OCCUPANT CLASSIFICATION SYSTEM, SEAT BELT TENSIONER, IMPACT SENSOR, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT.
NOTE: A non-calibrated Occupant Classification Module (OCM) is available for separate service replacement. The OCM and all of the other components of the Occupant Classification System (OCS) including the passenger side front seat, the seat weight sensors, the passenger or driver seat track position sensor and the seat adjusters, cushion, back, frame, foam, springs, and wiring harness are a factory-calibrated and assembled unit. Any time any one of these components is removed or replaced for any reason, the OCM must be re-calibrated using a diagnostic scan tool, the Occupant Classification Seat Weight special tool, and the Occupant Classification System Verification Test. Refer to the appropriate diagnostic procedures.
REMOVAL
1. Disconnect and isolate the battery negative cable. Wait two minutes for the system capacitor to discharge before further service.
2. Reach under the front edge of the passenger side front seat cushion to access and disconnect the body wire harness and seat wire harness connectors from the Occupant Classification Module (OCM) connector receptacles (4) located on the forward facing end of the module.
3. Remove the two screws (2) that secure the OCM to the OCM bracket (1) on the underside of the passenger side front seat cushion frame.
4. Remove the OCM (3) from under the passenger side front seat.
INSTALLATION
1. Carefully position the Occupant Classification Module (OCM) (3) to the OCM bracket (1) on the underside of the passenger side front seat cushion frame. When the OCM is correctly positioned, the connector receptacles on the module will be pointed forward in the vehicle.
2. Install and tighten the two screws (2) that secure the OCM to the OCM bracket. Tighten the screws to 2 N.m (15 in. lbs).
3. Reconnect the body wire harness and seat wire harness connectors to the OCM connector receptacles (4) located on the forward facing end of the module. Be certain that the latches and locks on both connectors are each fully engaged.
4. Do not reconnect the battery negative cable at this time. The supplemental restraint system verification test procedure should be performed following service of any supplemental restraint system component.
5. Following successful completion of the supplemental restraint system verification test procedure, perform the Occupant Classification System Verification Test using a diagnostic scan tool. Refer to the appropriate diagnostic procedures.