Occupant Classification Module

REMOVAL
Once any of the original factory-installed components except the Occupant Classification Module (OCM) have been replaced with the service replacement package components, the OCM can only be serviced by replacing the entire passenger front seat cushion unit with another complete service replacement package.

WARNING: ON VEHICLES EQUIPPED WITH THE OCCUPANT CLASSIFICATION SYSTEM (OCS), NEVER REPLACE BOTH THE OCCUPANT RESTRAINT CONTROLLER (ORC) AND THE OCCUPANT CLASSIFICATION MODULE (OCM) AT THE SAME TIME. IF BOTH REQUIRE REPLACEMENT, REPLACE THE OCM FIRST. THEN PERFORM THE AIRBAG SYSTEM TEST INCLUDING AN IGNITION-ON TIME OF AT LEAST ONE MINUTE BEFORE REPLACING THE ORC. BOTH THE ORC AND THE OCM STORE OCS CALIBRATION DATA, WHICH THEY TRANSFER TO ONE ANOTHER DURING THE FIRST MINUTE OF IGNITION-ON TIME AFTER ONE OF THEM IS REPLACED. IF BOTH MODULES ARE REPLACED AT THE SAME TIME, AN IRREVERSIBLE FAULT WILL BE SET IN BOTH MODULES.

1. Disconnect and isolate the battery negative cable.

WARNING: WAIT TWO MINUTES FOR THE AIRBAG SYSTEM RESERVE CAPACITOR TO DISCHARGE BEFORE BEGINNING ANY AIRBAG SYSTEM OR COMPONENT SERVICE. FAILURE TO DO SO MAY RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT, PERSONAL INJURY OR DEATH.

2. Disconnect the passenger front seat wire harness connector for the OCM.
3. Remove the two screws that secure the OCM to the OCM bracket.
4. Remove the OCM from under the passenger front seat.

INSTALLATION

WARNING: To avoid personal injury or death, on vehicles equipped with the Occupant Classification System (OCS), only the Occupant Classification Module (OCM) may be serviced separately. All other components of the passenger front seat cushion must be serviced only as a complete factory-calibrated, assembled and tamper-evident service replacement package.

Once any of the original factory-installed components except the OCM have been replaced with the service replacement package components, the OCM can only be serviced by replacing the entire passenger side front seat cushion unit with another complete service replacement package.

WARNING: ON VEHICLES EQUIPPED WITH THE OCCUPANT CLASSIFICATION SYSTEM (OCS), NEVER REPLACE BOTH THE OCCUPANT RESTRAINT CONTROLLER (ORC) AND THE OCCUPANT CLASSIFICATION MODULE (OCM) AT THE SAME TIME. IF BOTH REQUIRE REPLACEMENT, REPLACE THE OCM FIRST. THEN PERFORM THE AIRBAG SYSTEM TEST INCLUDING AN IGNITION-ON TIME OF AT LEAST ONE MINUTE BEFORE REPLACING THE ORC. BOTH THE ORC AND THE OCM STORE OCS CALIBRATION DATA, WHICH THEY TRANSFER TO ONE ANOTHER DURING THE FIRST MINUTE OF IGNITION-ON TIME AFTER ONE OF THEM IS REPLACED. IF BOTH MODULES ARE REPLACED AT THE SAME TIME, AN IRREVERSIBLE FAULT WILL BE SET IN BOTH MODULES.

OCM Remove/Install:

1. Carefully position the Occupant Classification Module (OCM) to the OCM bracket. When the OCM is correctly positioned, the connector on the module will be pointed to right side of the vehicle.
2. Install the two screws to the OCM. Torque the screws to 2 N.m (20 in. lbs.).
3. Connect the seat wire harness connector for the OCM. Be certain that the latches on the connector are each fully engaged.

WARNING:
- DO NOT CONNECT THE BATTERY NEGATIVE CABLE. PERSONAL INJURY OR DEATH MAY RESULT IF THE SYSTEM TEST IS NOT PERFORMED FIRST.
- FOLLOWING SUCCESSFUL COMPLETION OF THE AIRBAG SYSTEM TEST PROCEDURE, THE OCCUPANT CLASSIFICATION SYSTEM VERIFICATION TEST MUST BE DONE USING A SCAN TOOL AND THE APPROPRIATE DIAGNOSTIC INFORMATION.

4. Verify vehicle and system operation.
5. Close hood.